118312655 has 4 divisors (see below), whose sum is σ = 141975192. Its totient is φ = 94650120.

The previous prime is 118312637. The next prime is 118312661. The reversal of 118312655 is 556213811.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 118312655 - 2⁶ = 118312591 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 3 ways as a sum of consecutive naturals, for example, 11831261 + ... + 11831270.

It is an arithmetic number, because the mean of its divisors is an integer number (35493798).

Almost surely, 2^118312655 is an apocalyptic number.

118312655 is a deficient number, since it is larger than the sum of its proper divisors (23662537).

118312655 is an equidigital number, since it uses as much as digits as its factorization.

118312655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23662536.

The product of its digits is 7200, while the sum is 32.

The square root of 118312655 is about 10877.1620839261. The cubic root of 118312655 is about 490.9196321104.

The spelling of 118312655 in words is "one hundred eighteen million, three hundred twelve thousand, six hundred fifty-five".