113561856 has 108 divisors (see below), whose sum is σ = 341822208. Its totient is φ = 36191232.

The previous prime is 113561831. The next prime is 113561867. The reversal of 113561856 is 658165311.

113561856 is a `hidden beast` number, since 1 + 1 + 35 + 618 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 113561856.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51921 + ... + 54063.

Almost surely, 2^113561856 is an apocalyptic number.

113561856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113561856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170911104).

113561856 is an abundant number, since it is smaller than the sum of its proper divisors (228260352).

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

113561856 is a wasteful number, since it uses less digits than its factorization.

113561856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188 (or 2171 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 113561856 is about 10656.5405268314. The cubic root of 113561856 is about 484.2587692589.

The spelling of 113561856 in words is "one hundred thirteen million, five hundred sixty-one thousand, eight hundred fifty-six".