115111169 has 2 divisors, whose sum is σ = 115111170. Its totient is φ = 115111168.

The previous prime is 115111163. The next prime is 115111187. The reversal of 115111169 is 961111511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73017025 + 42094144 = 8545^2 + 6488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115111169 is a prime.

It is a super-2 number, since 2×115111169² = 26501162457093122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115111163) 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 as a sum of consecutive naturals, namely, 57555584 + 57555585.

It is an arithmetic number, because the mean of its divisors is an integer number (57555585).

Almost surely, 2^115111169 is an apocalyptic number.

It is an amenable number.

115111169 is a deficient number, since it is larger than the sum of its proper divisors (1).

115111169 is an equidigital number, since it uses as much as digits as its factorization.

115111169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270, while the sum is 26.

The square root of 115111169 is about 10728.9873240674. The cubic root of 115111169 is about 486.4510607992.

The spelling of 115111169 in words is "one hundred fifteen million, one hundred eleven thousand, one hundred sixty-nine".