118947015 has 64 divisors (see below), whose sum is σ = 232519680. Its totient is φ = 57214080.

The previous prime is 118946963. The next prime is 118947029. The reversal of 118947015 is 510749811.

118947015 is a `hidden beast` number, since 1 + 189 + 470 + 1 + 5 = 666.

It is not a de Polignac number, because 118947015 - 2¹³ = 118938823 is a prime.

It is a congruent 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 63 ways as a sum of consecutive naturals, for example, 256674 + ... + 257136.

It is an arithmetic number, because the mean of its divisors is an integer number (3633120).

Almost surely, 2^118947015 is an apocalyptic number.

118947015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

118947015 is a deficient number, since it is larger than the sum of its proper divisors (113572665).

118947015 is a wasteful number, since it uses less digits than its factorization.

118947015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 118947015 is about 10906.2832807515. The cubic root of 118947015 is about 491.7954607847.

The spelling of 118947015 in words is "one hundred eighteen million, nine hundred forty-seven thousand, fifteen".