113220856 has 16 divisors (see below), whose sum is σ = 242616240. Its totient is φ = 48523200.

The previous prime is 113220853. The next prime is 113220859. The reversal of 113220856 is 658022311.

It is an interprime number because it is at equal distance from previous prime (113220853) and next prime (113220859).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113220853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010845 + ... + 1010956.

It is an arithmetic number, because the mean of its divisors is an integer number (15163515).

Almost surely, 2^113220856 is an apocalyptic number.

It is an amenable number.

113220856 is an abundant number, since it is smaller than the sum of its proper divisors (129395384).

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

113220856 is a wasteful number, since it uses less digits than its factorization.

113220856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021814 (or 2021810 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 113220856 is about 10640.5289342213. The cubic root of 113220856 is about 483.7735775843.

The spelling of 113220856 in words is "one hundred thirteen million, two hundred twenty thousand, eight hundred fifty-six".