115890369 has 32 divisors (see below), whose sum is σ = 185081856. Its totient is φ = 63106560.

The previous prime is 115890361. The next prime is 115890403. The reversal of 115890369 is 963098511.

It is not a de Polignac number, because 115890369 - 2³ = 115890361 is a prime.

It is a super-2 number, since 2×115890369² = 26861155253912322, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 115890369.

It is not an unprimeable number, because it can be changed into a prime (115890361) 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, 42289 + ... + 44945.

It is an arithmetic number, because the mean of its divisors is an integer number (5783808).

Almost surely, 2^115890369 is an apocalyptic number.

It is an amenable number.

115890369 is a deficient number, since it is larger than the sum of its proper divisors (69191487).

115890369 is a wasteful number, since it uses less digits than its factorization.

115890369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 115890369 is about 10765.2389197825. The cubic root of 115890369 is about 487.5462067971.

The spelling of 115890369 in words is "one hundred fifteen million, eight hundred ninety thousand, three hundred sixty-nine".