113566169 has 2 divisors, whose sum is σ = 113566170. Its totient is φ = 113566168.

The previous prime is 113566163. The next prime is 113566181. The reversal of 113566169 is 961665311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90478144 + 23088025 = 9512^2 + 4805^2 .

It is a cyclic number.

It is not a de Polignac number, because 113566169 - 2⁴ = 113566153 is a prime.

It is a super-2 number, since 2×113566169² = 25794549482673122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113566163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56783084 + 56783085.

It is an arithmetic number, because the mean of its divisors is an integer number (56783085).

Almost surely, 2^113566169 is an apocalyptic number.

It is an amenable number.

113566169 is a deficient number, since it is larger than the sum of its proper divisors (1).

113566169 is an equidigital number, since it uses as much as digits as its factorization.

113566169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 38.

The square root of 113566169 is about 10656.7428888943. The cubic root of 113566169 is about 484.2648997846.

The spelling of 113566169 in words is "one hundred thirteen million, five hundred sixty-six thousand, one hundred sixty-nine".