115913615 has 8 divisors (see below), whose sum is σ = 139499280. Its totient is φ = 92462272.

The previous prime is 115913593. The next prime is 115913627. The reversal of 115913615 is 516319511.

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

It is a cyclic number.

It is not a de Polignac number, because 115913615 - 2¹⁰ = 115912591 is a prime.

It is a super-2 number, since 2×115913615² = 26871932284736450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31670 + ... + 35139.

It is an arithmetic number, because the mean of its divisors is an integer number (17437410).

Almost surely, 2^115913615 is an apocalyptic number.

115913615 is a deficient number, since it is larger than the sum of its proper divisors (23585665).

115913615 is an equidigital number, since it uses as much as digits as its factorization.

115913615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67161.

The product of its digits is 4050, while the sum is 32.

The square root of 115913615 is about 10766.3185444236. The cubic root of 115913615 is about 487.5788029525.

The spelling of 115913615 in words is "one hundred fifteen million, nine hundred thirteen thousand, six hundred fifteen".