118235139 has 8 divisors (see below), whose sum is σ = 171978432. Its totient is φ = 71657640.

The previous prime is 118235137. The next prime is 118235179. The reversal of 118235139 is 931532811.

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

It is not a de Polignac number, because 118235139 - 2¹ = 118235137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 3582883 = 118235139 / (1 + 1 + 8 + 2 + 3 + 5 + 1 + 3 + 9).

It is not an unprimeable number, because it can be changed into a prime (118235137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1791409 + ... + 1791474.

It is an arithmetic number, because the mean of its divisors is an integer number (21497304).

Almost surely, 2^118235139 is an apocalyptic number.

118235139 is a deficient number, since it is larger than the sum of its proper divisors (53743293).

118235139 is a wasteful number, since it uses less digits than its factorization.

118235139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3582897.

The product of its digits is 6480, while the sum is 33.

The square root of 118235139 is about 10873.5982544878. The cubic root of 118235139 is about 490.8123952303.

The spelling of 118235139 in words is "one hundred eighteen million, two hundred thirty-five thousand, one hundred thirty-nine".