113615978 has 16 divisors (see below), whose sum is σ = 196306944. Its totient is φ = 48308400.

The previous prime is 113615969. The next prime is 113615989. The reversal of 113615978 is 879516311.

It is a Curzon number.

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, 30173 + ... + 33728.

It is an arithmetic number, because the mean of its divisors is an integer number (12269184).

Almost surely, 2^113615978 is an apocalyptic number.

113615978 is a deficient number, since it is larger than the sum of its proper divisors (82690966).

113615978 is a wasteful number, since it uses less digits than its factorization.

113615978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64037.

The product of its digits is 45360, while the sum is 41.

The square root of 113615978 is about 10659.0796037932. The cubic root of 113615978 is about 484.3356873706.

The spelling of 113615978 in words is "one hundred thirteen million, six hundred fifteen thousand, nine hundred seventy-eight".