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148645157 = 1423104459
BaseRepresentation
bin10001101110000…
…10010100100101
3101100200221211012
420313002110211
5301023121112
622425552005
73453314543
oct1067022445
9340627735
10148645157
11769a7341
1241945605
1324a4631b
1415a54d93
15d0b3022
hex8dc2525

148645157 has 4 divisors (see below), whose sum is σ = 148751040. Its totient is φ = 148539276.

The previous prime is 148645141. The next prime is 148645163. The reversal of 148645157 is 751546841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 148645157 - 24 = 148645141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148645187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50807 + ... + 53652.

It is an arithmetic number, because the mean of its divisors is an integer number (37187760).

Almost surely, 2148645157 is an apocalyptic number.

It is an amenable number.

148645157 is a deficient number, since it is larger than the sum of its proper divisors (105883).

148645157 is a wasteful number, since it uses less digits than its factorization.

148645157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105882.

The product of its digits is 134400, while the sum is 41.

The square root of 148645157 is about 12192.0120160702. The cubic root of 148645157 is about 529.7247378043.

The spelling of 148645157 in words is "one hundred forty-eight million, six hundred forty-five thousand, one hundred fifty-seven".

Divisors: 1 1423 104459 148645157