115865164 has 24 divisors (see below), whose sum is σ = 205789248. Its totient is φ = 57074640.

The previous prime is 115865131. The next prime is 115865207. The reversal of 115865164 is 461568511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89667 + ... + 90949.

It is an arithmetic number, because the mean of its divisors is an integer number (8574552).

Almost surely, 2^115865164 is an apocalyptic number.

It is an amenable number.

115865164 is a deficient number, since it is larger than the sum of its proper divisors (89924084).

115865164 is a wasteful number, since it uses less digits than its factorization.

115865164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605 (or 1603 counting only the distinct ones).

The product of its digits is 28800, while the sum is 37.

The square root of 115865164 is about 10764.0681900479. The cubic root of 115865164 is about 487.5108587544.

The spelling of 115865164 in words is "one hundred fifteen million, eight hundred sixty-five thousand, one hundred sixty-four".