118328939 has 4 divisors (see below), whose sum is σ = 120846624. Its totient is φ = 115811256.

The previous prime is 118328933. The next prime is 118328957. The reversal of 118328939 is 939823811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118328939 - 2¹⁶ = 118263403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118328939.

It is not an unprimeable number, because it can be changed into a prime (118328933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258772 + ... + 1258865.

It is an arithmetic number, because the mean of its divisors is an integer number (30211656).

Almost surely, 2^118328939 is an apocalyptic number.

118328939 is a deficient number, since it is larger than the sum of its proper divisors (2517685).

118328939 is an equidigital number, since it uses as much as digits as its factorization.

118328939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517684.

The product of its digits is 93312, while the sum is 44.

The square root of 118328939 is about 10877.9105990075. The cubic root of 118328939 is about 490.9421537039.

The spelling of 118328939 in words is "one hundred eighteen million, three hundred twenty-eight thousand, nine hundred thirty-nine".