115312265 has 16 divisors (see below), whose sum is σ = 145504080. Its totient is φ = 87601920.

The previous prime is 115312229. The next prime is 115312277. The reversal of 115312265 is 562213511.

It can be written as a sum of positive squares in 8 ways, for example, as 8231161 + 107081104 = 2869^2 + 10348^2 .

It is not a de Polignac number, because 115312265 - 2²⁰ = 114263689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2327 + ... + 15363.

It is an arithmetic number, because the mean of its divisors is an integer number (9094005).

Almost surely, 2^115312265 is an apocalyptic number.

It is an amenable number.

115312265 is a deficient number, since it is larger than the sum of its proper divisors (30191815).

115312265 is a wasteful number, since it uses less digits than its factorization.

115312265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13132.

The product of its digits is 1800, while the sum is 26.

The square root of 115312265 is about 10738.3548553771. The cubic root of 115312265 is about 486.7341681458.

Adding to 115312265 its reverse (562213511), we get a palindrome (677525776).

The spelling of 115312265 in words is "one hundred fifteen million, three hundred twelve thousand, two hundred sixty-five".