118505979 has 24 divisors (see below), whose sum is σ = 176496320. Its totient is φ = 76576752.

The previous prime is 118505971. The next prime is 118506001. The reversal of 118505979 is 979505811.

118505979 is a `hidden beast` number, since 1 + 1 + 8 + 50 + 597 + 9 = 666.

It is not a de Polignac number, because 118505979 - 2³ = 118505971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118505971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52692 + ... + 54894.

Almost surely, 2^118505979 is an apocalyptic number.

118505979 is a deficient number, since it is larger than the sum of its proper divisors (57990341).

118505979 is a wasteful number, since it uses less digits than its factorization.

118505979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391 (or 2388 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 45.

The square root of 118505979 is about 10886.0451496400. The cubic root of 118505979 is about 491.1868757148.

The spelling of 118505979 in words is "one hundred eighteen million, five hundred five thousand, nine hundred seventy-nine".