131535504 has 30 divisors (see below), whose sum is σ = 368117126. Its totient is φ = 43845120.

The previous prime is 131535497. The next prime is 131535517. The reversal of 131535504 is 405535131.

131535504 is a `hidden beast` number, since 1 + 3 + 153 + 5 + 504 = 666.

It can be written as a sum of positive squares in only one way, i.e., 69755904 + 61779600 = 8352^2 + 7860^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 456577 + ... + 456864.

Almost surely, 2^131535504 is an apocalyptic number.

It is an amenable number.

131535504 is an abundant number, since it is smaller than the sum of its proper divisors (236581622).

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

131535504 is a wasteful number, since it uses less digits than its factorization.

131535504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913455 (or 913446 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 131535504 is about 11468.8928846685. The cubic root of 131535504 is about 508.5664007174.

The spelling of 131535504 in words is "one hundred thirty-one million, five hundred thirty-five thousand, five hundred four".