115531604 has 12 divisors (see below), whose sum is σ = 207111828. Its totient is φ = 56356800.

The previous prime is 115531589. The next prime is 115531627. The reversal of 115531604 is 406135511.

115531604 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5071504 + 110460100 = 2252^2 + 10510^2 .

115531604 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352067 + ... + 352394.

It is an arithmetic number, because the mean of its divisors is an integer number (17259319).

Almost surely, 2^115531604 is an apocalyptic number.

It is an amenable number.

115531604 is a deficient number, since it is larger than the sum of its proper divisors (91580224).

115531604 is a wasteful number, since it uses less digits than its factorization.

115531604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704506 (or 704504 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 115531604 is about 10748.5628806832. The cubic root of 115531604 is about 487.0425833486.

The spelling of 115531604 in words is "one hundred fifteen million, five hundred thirty-one thousand, six hundred four".