113157169 has 2 divisors, whose sum is σ = 113157170. Its totient is φ = 113157168.

The previous prime is 113157157. The next prime is 113157203. The reversal of 113157169 is 961751311.

It is an a-pointer prime, because the next prime (113157203) can be obtained adding 113157169 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94770225 + 18386944 = 9735^2 + 4288^2 .

It is a cyclic number.

It is not a de Polignac number, because 113157169 - 2⁷ = 113157041 is a prime.

It is a super-2 number, since 2×113157169² = 25609089792189122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113157119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56578584 + 56578585.

It is an arithmetic number, because the mean of its divisors is an integer number (56578585).

Almost surely, 2^113157169 is an apocalyptic number.

It is an amenable number.

113157169 is a deficient number, since it is larger than the sum of its proper divisors (1).

113157169 is an equidigital number, since it uses as much as digits as its factorization.

113157169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 34.

The square root of 113157169 is about 10637.5358518785. The cubic root of 113157169 is about 483.6828526430.

The spelling of 113157169 in words is "one hundred thirteen million, one hundred fifty-seven thousand, one hundred sixty-nine".