115265409 has 32 divisors (see below), whose sum is σ = 184442880. Its totient is φ = 62640000.

The previous prime is 115265387. The next prime is 115265411. The reversal of 115265409 is 904562511.

It is not a de Polignac number, because 115265409 - 2⁷ = 115265281 is a prime.

It is a super-2 number, since 2×115265409² = 26572229023874562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115265409.

It is not an unprimeable number, because it can be changed into a prime (115263409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36909 + ... + 39909.

It is an arithmetic number, because the mean of its divisors is an integer number (5763840).

Almost surely, 2^115265409 is an apocalyptic number.

It is an amenable number.

115265409 is a deficient number, since it is larger than the sum of its proper divisors (69177471).

115265409 is a wasteful number, since it uses less digits than its factorization.

115265409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 115265409 is about 10736.1729214837. The cubic root of 115265409 is about 486.6682326736.

The spelling of 115265409 in words is "one hundred fifteen million, two hundred sixty-five thousand, four hundred nine".