113657680 has 20 divisors (see below), whose sum is σ = 264254292. Its totient is φ = 45463040.

The previous prime is 113657669. The next prime is 113657689. The reversal of 113657680 is 86756311.

It can be written as a sum of positive squares in 2 ways, for example, as 58125376 + 55532304 = 7624^2 + 7452^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113657689) 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, 710281 + ... + 710440.

Almost surely, 2^113657680 is an apocalyptic number.

113657680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113657680 is an abundant number, since it is smaller than the sum of its proper divisors (150596612).

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

113657680 is a wasteful number, since it uses less digits than its factorization.

113657680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420734 (or 1420728 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 113657680 is about 10661.0355969765. The cubic root of 113657680 is about 484.3949375352.

The spelling of 113657680 in words is "one hundred thirteen million, six hundred fifty-seven thousand, six hundred eighty".