115265531 has 2 divisors, whose sum is σ = 115265532. Its totient is φ = 115265530.

The previous prime is 115265497. The next prime is 115265567. The reversal of 115265531 is 135562511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115265531 - 2¹⁸ = 115003387 is a prime.

It is a super-2 number, since 2×115265531² = 26572285273423922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115265494 and 115265503.

It is not a weakly prime, because it can be changed into another prime (115265131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57632765 + 57632766.

It is an arithmetic number, because the mean of its divisors is an integer number (57632766).

Almost surely, 2^115265531 is an apocalyptic number.

115265531 is a deficient number, since it is larger than the sum of its proper divisors (1).

115265531 is an equidigital number, since it uses as much as digits as its factorization.

115265531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4500, while the sum is 29.

The square root of 115265531 is about 10736.1786032089. The cubic root of 115265531 is about 486.6684043744.

The spelling of 115265531 in words is "one hundred fifteen million, two hundred sixty-five thousand, five hundred thirty-one".