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153140625 = 3456112
BaseRepresentation
bin10010010000010…
…11110110010001
3101200011100110000
421020023312101
5303201000000
623110200213
73536450061
oct1110136621
9350140400
10153140625
1179497900
1243353069
132595b571
14164a53a1
15d6a0000
hex920bd91

153140625 has 105 divisors (see below), whose sum is σ = 314312383. Its totient is φ = 74250000.

The previous prime is 153140623. The next prime is 153140657. The reversal of 153140625 is 526041351.

The square root of 153140625 is 12375.

It is a perfect power (a square), and thus also a powerful number.

153140625 is a `hidden beast` number, since 1 + 5 + 31 + 4 + 0 + 625 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 134165889 + 18974736 = 11583^2 + 4356^2 .

It is not a de Polignac number, because 153140625 - 21 = 153140623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (153140623) by changing a digit.

It is a polite number, since it can be written in 104 ways as a sum of consecutive naturals, for example, 13921870 + ... + 13921880.

Almost surely, 2153140625 is an apocalyptic number.

153140625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

153140625 is the 12375-th square number.

153140625 is the 6188-th centered octagonal number.

It is an amenable number.

153140625 is an abundant number, since it is smaller than the sum of its proper divisors (161171758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

153140625 is an frugal number, since it uses more digits than its factorization.

153140625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 19 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The cubic root of 153140625 is about 535.0119367296.

Multiplying 153140625 by its product of nonzero digits (3600), we get a square (551306250000 = 7425002).

Adding to 153140625 its reverse (526041351), we get a palindrome (679181976).

The spelling of 153140625 in words is "one hundred fifty-three million, one hundred forty thousand, six hundred twenty-five".

Divisors: 1 3 5 9 11 15 25 27 33 45 55 75 81 99 121 125 135 165 225 275 297 363 375 405 495 605 625 675 825 891 1089 1125 1375 1485 1815 1875 2025 2475 3025 3125 3267 3375 4125 4455 5445 5625 6875 7425 9075 9375 9801 10125 12375 15125 15625 16335 16875 20625 22275 27225 28125 34375 37125 45375 46875 49005 50625 61875 75625 81675 84375 103125 111375 136125 140625 171875 185625 226875 245025 253125 309375 378125 408375 421875 515625 556875 680625 928125 1134375 1225125 1265625 1546875 1890625 2041875 2784375 3403125 4640625 5671875 6125625 10209375 13921875 17015625 30628125 51046875 153140625