113839520 has 24 divisors (see below), whose sum is σ = 268946244. Its totient is φ = 45535744.

The previous prime is 113839519. The next prime is 113839541. The reversal of 113839520 is 25938311.

It can be written as a sum of positive squares in 2 ways, for example, as 100560784 + 13278736 = 10028^2 + 3644^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355589 + ... + 355908.

Almost surely, 2^113839520 is an apocalyptic number.

113839520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113839520 is an abundant number, since it is smaller than the sum of its proper divisors (155106724).

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

113839520 is an equidigital number, since it uses as much as digits as its factorization.

113839520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711512 (or 711504 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 113839520 is about 10669.5604408054. The cubic root of 113839520 is about 484.6531264027.

The spelling of 113839520 in words is "one hundred thirteen million, eight hundred thirty-nine thousand, five hundred twenty".