118115515 has 8 divisors (see below), whose sum is σ = 161987040. Its totient is φ = 80993472.

The previous prime is 118115497. The next prime is 118115527. The reversal of 118115515 is 515511811.

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

It is not a de Polignac number, because 118115515 - 2⁵ = 118115483 is a prime.

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, 1687330 + ... + 1687399.

It is an arithmetic number, because the mean of its divisors is an integer number (20248380).

Almost surely, 2^118115515 is an apocalyptic number.

118115515 is a deficient number, since it is larger than the sum of its proper divisors (43871525).

118115515 is an equidigital number, since it uses as much as digits as its factorization.

118115515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374741.

The product of its digits is 1000, while the sum is 28.

The square root of 118115515 is about 10868.0961994270. The cubic root of 118115515 is about 490.6468134513.

The spelling of 118115515 in words is "one hundred eighteen million, one hundred fifteen thousand, five hundred fifteen".