115363581 has 8 divisors (see below), whose sum is σ = 162866304. Its totient is φ = 72384960.

The previous prime is 115363571. The next prime is 115363583. The reversal of 115363581 is 185363511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115363581 - 2²⁵ = 81809149 is a prime.

It is a super-2 number, since 2×115363581² = 26617511642287122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115363583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1130965 + ... + 1131066.

It is an arithmetic number, because the mean of its divisors is an integer number (20358288).

Almost surely, 2^115363581 is an apocalyptic number.

It is an amenable number.

115363581 is a deficient number, since it is larger than the sum of its proper divisors (47502723).

115363581 is a wasteful number, since it uses less digits than its factorization.

115363581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262051.

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

The square root of 115363581 is about 10740.7439686457. The cubic root of 115363581 is about 486.8063592129.

The spelling of 115363581 in words is "one hundred fifteen million, three hundred sixty-three thousand, five hundred eighty-one".