118568139 has 8 divisors (see below), whose sum is σ = 158753280. Its totient is φ = 78714216.

The previous prime is 118568137. The next prime is 118568143. The reversal of 118568139 is 931865811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 118568139 - 2¹ = 118568137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118568139.

It is not an unprimeable number, because it can be changed into a prime (118568137) 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 7 ways as a sum of consecutive naturals, for example, 81967 + ... + 83400.

It is an arithmetic number, because the mean of its divisors is an integer number (19844160).

Almost surely, 2^118568139 is an apocalyptic number.

118568139 is a deficient number, since it is larger than the sum of its proper divisors (40185141).

118568139 is a wasteful number, since it uses less digits than its factorization.

118568139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165609.

The product of its digits is 51840, while the sum is 42.

The square root of 118568139 is about 10888.8998066839. The cubic root of 118568139 is about 491.2727415354.

The spelling of 118568139 in words is "one hundred eighteen million, five hundred sixty-eight thousand, one hundred thirty-nine".