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135425887 = 3131713781
BaseRepresentation
bin10000001001001…
…10111101011111
3100102211100101121
420010212331133
5234132112022
621234351411
73233046442
oct1004467537
9312740347
10135425887
116a498523
123942b567
132209837c
1413db3659
15bd512c7
hex8126f5f

135425887 has 8 divisors (see below), whose sum is σ = 140245632. Its totient is φ = 130634400.

The previous prime is 135425881. The next prime is 135425921. The reversal of 135425887 is 788524531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135425887 - 23 = 135425879 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 (135425881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2937 + ... + 16717.

It is an arithmetic number, because the mean of its divisors is an integer number (17530704).

Almost surely, 2135425887 is an apocalyptic number.

135425887 is a deficient number, since it is larger than the sum of its proper divisors (4819745).

135425887 is a wasteful number, since it uses less digits than its factorization.

135425887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14129.

The product of its digits is 268800, while the sum is 43.

The square root of 135425887 is about 11637.2628654680. The cubic root of 135425887 is about 513.5316670034.

The spelling of 135425887 in words is "one hundred thirty-five million, four hundred twenty-five thousand, eight hundred eighty-seven".

Divisors: 1 31 317 9827 13781 427211 4368577 135425887