118323139 has 16 divisors (see below), whose sum is σ = 131878656. Its totient is φ = 105256800.

The previous prime is 118323113. The next prime is 118323173. The reversal of 118323139 is 931323811.

It is not a de Polignac number, because 118323139 - 2⁷ = 118323011 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 118323139.

It is not an unprimeable number, because it can be changed into a prime (118323239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132954 + ... + 133840.

It is an arithmetic number, because the mean of its divisors is an integer number (8242416).

Almost surely, 2^118323139 is an apocalyptic number.

118323139 is a deficient number, since it is larger than the sum of its proper divisors (13555517).

118323139 is a wasteful number, since it uses less digits than its factorization.

118323139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146.

The product of its digits is 3888, while the sum is 31.

The square root of 118323139 is about 10877.6440004258. The cubic root of 118323139 is about 490.9341322482.

The spelling of 118323139 in words is "one hundred eighteen million, three hundred twenty-three thousand, one hundred thirty-nine".