113581864 has 32 divisors (see below), whose sum is σ = 240343200. Its totient is φ = 49846720.

The previous prime is 113581841. The next prime is 113581957. The reversal of 113581864 is 468185311.

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, 19702 + ... + 24805.

It is an arithmetic number, because the mean of its divisors is an integer number (7510725).

Almost surely, 2^113581864 is an apocalyptic number.

It is an amenable number.

113581864 is an abundant number, since it is smaller than the sum of its proper divisors (126761336).

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

113581864 is a wasteful number, since it uses less digits than its factorization.

113581864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44553 (or 44549 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 113581864 is about 10657.4792516805. The cubic root of 113581864 is about 484.2872074476.

The spelling of 113581864 in words is "one hundred thirteen million, five hundred eighty-one thousand, eight hundred sixty-four".