113813161 has 16 divisors (see below), whose sum is σ = 142945920. Its totient is φ = 88030080.

The previous prime is 113813153. The next prime is 113813191. The reversal of 113813161 is 161318311.

It is a cyclic number.

It is not a de Polignac number, because 113813161 - 2³ = 113813153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113813191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5155 + ... + 15943.

It is an arithmetic number, because the mean of its divisors is an integer number (8934120).

Almost surely, 2^113813161 is an apocalyptic number.

113813161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113813161 is a deficient number, since it is larger than the sum of its proper divisors (29132759).

113813161 is a wasteful number, since it uses less digits than its factorization.

113813161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10944.

The product of its digits is 432, while the sum is 25.

The square root of 113813161 is about 10668.3251262792. The cubic root of 113813161 is about 484.6157171390.

The spelling of 113813161 in words is "one hundred thirteen million, eight hundred thirteen thousand, one hundred sixty-one".