115715144 has 32 divisors (see below), whose sum is σ = 220259520. Its totient is φ = 56986176.

The previous prime is 115715129. The next prime is 115715153. The reversal of 115715144 is 441517511.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 260987 + ... + 261429.

It is an arithmetic number, because the mean of its divisors is an integer number (6883110).

Almost surely, 2^115715144 is an apocalyptic number.

It is an amenable number.

115715144 is a deficient number, since it is larger than the sum of its proper divisors (104544376).

115715144 is a wasteful number, since it uses less digits than its factorization.

115715144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869 (or 865 counting only the distinct ones).

The product of its digits is 2800, while the sum is 29.

The square root of 115715144 is about 10757.0973780105. The cubic root of 115715144 is about 487.3003612979.

The spelling of 115715144 in words is "one hundred fifteen million, seven hundred fifteen thousand, one hundred forty-four".