115605815 has 8 divisors (see below), whose sum is σ = 149398368. Its totient is φ = 85370400.

The previous prime is 115605799. The next prime is 115605827. The reversal of 115605815 is 518506511.

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

It is not a de Polignac number, because 115605815 - 2⁴ = 115605799 is a prime.

It is a Duffinian number.

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, 889211 + ... + 889340.

It is an arithmetic number, because the mean of its divisors is an integer number (18674796).

Almost surely, 2^115605815 is an apocalyptic number.

115605815 is a deficient number, since it is larger than the sum of its proper divisors (33792553).

115605815 is a wasteful number, since it uses less digits than its factorization.

115605815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778569.

The product of its (nonzero) digits is 6000, while the sum is 32.

The square root of 115605815 is about 10752.0144624159. The cubic root of 115605815 is about 487.1468439426.

The spelling of 115605815 in words is "one hundred fifteen million, six hundred five thousand, eight hundred fifteen".