118908009 has 24 divisors (see below), whose sum is σ = 187727904. Its totient is φ = 71928000.

The previous prime is 118907981. The next prime is 118908019. The reversal of 118908009 is 900809811.

It is not a de Polignac number, because 118908009 - 2⁷ = 118907881 is a prime.

It is a super-2 number, since 2×118908009² = 28278229208688162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118908019) 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, 79549 + ... + 81029.

It is an arithmetic number, because the mean of its divisors is an integer number (7821996).

Almost surely, 2^118908009 is an apocalyptic number.

It is an amenable number.

118908009 is a deficient number, since it is larger than the sum of its proper divisors (68819895).

118908009 is a wasteful number, since it uses less digits than its factorization.

118908009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309 (or 2306 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 118908009 is about 10904.4948988938. The cubic root of 118908009 is about 491.7416971517.

The spelling of 118908009 in words is "one hundred eighteen million, nine hundred eight thousand, nine".