113808665 has 4 divisors (see below), whose sum is σ = 136570404. Its totient is φ = 91046928.

The previous prime is 113808647. The next prime is 113808677. The reversal of 113808665 is 566808311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61042969 + 52765696 = 7813^2 + 7264^2 .

It is a cyclic number.

It is not a de Polignac number, because 113808665 - 2⁶ = 113808601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11380862 + ... + 11380871.

It is an arithmetic number, because the mean of its divisors is an integer number (34142601).

Almost surely, 2^113808665 is an apocalyptic number.

It is an amenable number.

113808665 is a deficient number, since it is larger than the sum of its proper divisors (22761739).

113808665 is an equidigital number, since it uses as much as digits as its factorization.

113808665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22761738.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 113808665 is about 10668.1144069606. The cubic root of 113808665 is about 484.6093357418.

The spelling of 113808665 in words is "one hundred thirteen million, eight hundred eight thousand, six hundred sixty-five".