113391617 has 4 divisors (see below), whose sum is σ = 113422596. Its totient is φ = 113360640.

The previous prime is 113391599. The next prime is 113391631. The reversal of 113391617 is 716193311.

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 98883136 + 14508481 = 9944^2 + 3809^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113391617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113391637) 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, 9128 + ... + 17609.

It is an arithmetic number, because the mean of its divisors is an integer number (28355649).

Almost surely, 2^113391617 is an apocalyptic number.

It is an amenable number.

113391617 is a deficient number, since it is larger than the sum of its proper divisors (30979).

113391617 is an equidigital number, since it uses as much as digits as its factorization.

113391617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30978.

The product of its digits is 3402, while the sum is 32.

The square root of 113391617 is about 10648.5499951871. The cubic root of 113391617 is about 484.0166663773.

The spelling of 113391617 in words is "one hundred thirteen million, three hundred ninety-one thousand, six hundred seventeen".