118947715 has 16 divisors (see below), whose sum is σ = 145006848. Its totient is φ = 93654496.

The previous prime is 118947679. The next prime is 118947737. The reversal of 118947715 is 517749811.

It is a cyclic number.

It is not a de Polignac number, because 118947715 - 2⁹ = 118947203 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183522 + ... + 184168.

It is an arithmetic number, because the mean of its divisors is an integer number (9062928).

Almost surely, 2^118947715 is an apocalyptic number.

118947715 is a deficient number, since it is larger than the sum of its proper divisors (26059133).

118947715 is an equidigital number, since it uses as much as digits as its factorization.

118947715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178.

The product of its digits is 70560, while the sum is 43.

The square root of 118947715 is about 10906.3153722969. The cubic root of 118947715 is about 491.7964255172.

The spelling of 118947715 in words is "one hundred eighteen million, nine hundred forty-seven thousand, seven hundred fifteen".