118043139 has 4 divisors (see below), whose sum is σ = 157390856. Its totient is φ = 78695424.

The previous prime is 118043131. The next prime is 118043171. The reversal of 118043139 is 931340811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931340811 = 3 ⋅310446937.

It is not a de Polignac number, because 118043139 - 2³ = 118043131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118043131) 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, 19673854 + ... + 19673859.

It is an arithmetic number, because the mean of its divisors is an integer number (39347714).

Almost surely, 2^118043139 is an apocalyptic number.

118043139 is a deficient number, since it is larger than the sum of its proper divisors (39347717).

118043139 is an equidigital number, since it uses as much as digits as its factorization.

118043139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39347716.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 118043139 is about 10864.7659431761. The cubic root of 118043139 is about 490.5465773690.

The spelling of 118043139 in words is "one hundred eighteen million, forty-three thousand, one hundred thirty-nine".