115309169 has 2 divisors, whose sum is σ = 115309170. Its totient is φ = 115309168.

The previous prime is 115309123. The next prime is 115309217. The reversal of 115309169 is 961903511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83046769 + 32262400 = 9113^2 + 5680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115309169 is a prime.

It is a super-2 number, since 2×115309169² = 26592408910941122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115309769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57654584 + 57654585.

It is an arithmetic number, because the mean of its divisors is an integer number (57654585).

Almost surely, 2^115309169 is an apocalyptic number.

It is an amenable number.

115309169 is a deficient number, since it is larger than the sum of its proper divisors (1).

115309169 is an equidigital number, since it uses as much as digits as its factorization.

115309169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 115309169 is about 10738.2106982495. The cubic root of 115309169 is about 486.7298120250.

The spelling of 115309169 in words is "one hundred fifteen million, three hundred nine thousand, one hundred sixty-nine".