115512564 has 24 divisors (see below), whose sum is σ = 271147968. Its totient is φ = 38272960.

The previous prime is 115512559. The next prime is 115512587. The reversal of 115512564 is 465215511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26817 + ... + 30824.

It is an arithmetic number, because the mean of its divisors is an integer number (11297832).

Almost surely, 2^115512564 is an apocalyptic number.

It is an amenable number.

115512564 is an abundant number, since it is smaller than the sum of its proper divisors (155635404).

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

115512564 is a wasteful number, since it uses less digits than its factorization.

115512564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57815 (or 57813 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

The square root of 115512564 is about 10747.6771443880. The cubic root of 115512564 is about 487.0158264557.

The spelling of 115512564 in words is "one hundred fifteen million, five hundred twelve thousand, five hundred sixty-four".