118520715 has 8 divisors (see below), whose sum is σ = 189633168. Its totient is φ = 63211040.

The previous prime is 118520707. The next prime is 118520729. The reversal of 118520715 is 517025811.

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

It is not a de Polignac number, because 118520715 - 2³ = 118520707 is a prime.

It is a super-2 number, since 2×118520715² = 28094319768222450, which contains 22 as substring.

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, 3950676 + ... + 3950705.

It is an arithmetic number, because the mean of its divisors is an integer number (23704146).

Almost surely, 2^118520715 is an apocalyptic number.

118520715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

118520715 is a deficient number, since it is larger than the sum of its proper divisors (71112453).

118520715 is an equidigital number, since it uses as much as digits as its factorization.

118520715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7901389.

The product of its (nonzero) digits is 2800, while the sum is 30.

The square root of 118520715 is about 10886.7219584226. The cubic root of 118520715 is about 491.2072342651.

The spelling of 118520715 in words is "one hundred eighteen million, five hundred twenty thousand, seven hundred fifteen".