131585604 has 24 divisors (see below), whose sum is σ = 309905568. Its totient is φ = 43451520.

The previous prime is 131585603. The next prime is 131585609. The reversal of 131585604 is 406585131.

It is not an unprimeable number, because it can be changed into a prime (131585603) 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, 49957 + ... + 52524.

It is an arithmetic number, because the mean of its divisors is an integer number (12912732).

Almost surely, 2^131585604 is an apocalyptic number.

It is an amenable number.

131585604 is an abundant number, since it is smaller than the sum of its proper divisors (178319964).

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

131585604 is a wasteful number, since it uses less digits than its factorization.

131585604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102595 (or 102593 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 131585604 is about 11471.0768457020. The cubic root of 131585604 is about 508.6309610875.

The spelling of 131585604 in words is "one hundred thirty-one million, five hundred eighty-five thousand, six hundred four".