115415657 has 16 divisors (see below), whose sum is σ = 133926912. Its totient is φ = 97422480.

The previous prime is 115415647. The next prime is 115415687. The reversal of 115415657 is 756514511.

It is a cyclic number.

It is not a de Polignac number, because 115415657 - 2¹⁰ = 115414633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115415627) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 166682 + ... + 167372.

It is an arithmetic number, because the mean of its divisors is an integer number (8370432).

Almost surely, 2^115415657 is an apocalyptic number.

It is an amenable number.

115415657 is a deficient number, since it is larger than the sum of its proper divisors (18511255).

115415657 is a wasteful number, since it uses less digits than its factorization.

115415657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028.

The product of its digits is 21000, while the sum is 35.

The square root of 115415657 is about 10743.1679219865. The cubic root of 115415657 is about 486.8795975612.

The spelling of 115415657 in words is "one hundred fifteen million, four hundred fifteen thousand, six hundred fifty-seven".