118719915 has 16 divisors (see below), whose sum is σ = 190629888. Its totient is φ = 63091296.

The previous prime is 118719893. The next prime is 118719919. The reversal of 118719915 is 519917811.

It is not a de Polignac number, because 118719915 - 2⁶ = 118719851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118719919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9739 + ... + 18228.

It is an arithmetic number, because the mean of its divisors is an integer number (11914368).

Almost surely, 2^118719915 is an apocalyptic number.

118719915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

118719915 is a deficient number, since it is larger than the sum of its proper divisors (71909973).

118719915 is a wasteful number, since it uses less digits than its factorization.

118719915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28258.

The product of its digits is 22680, while the sum is 42.

The square root of 118719915 is about 10895.8668769401. The cubic root of 118719915 is about 491.4822739873.

The spelling of 118719915 in words is "one hundred eighteen million, seven hundred nineteen thousand, nine hundred fifteen".