108118939 has 4 divisors (see below), whose sum is σ = 108186624. Its totient is φ = 108051256.

The previous prime is 108118909. The next prime is 108118951. The reversal of 108118939 is 939811801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939811801 = 19 ⋅49463779.

It is a cyclic number.

It is not a de Polignac number, because 108118939 - 2¹¹ = 108116891 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108118909) 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, 31387 + ... + 34660.

It is an arithmetic number, because the mean of its divisors is an integer number (27046656).

Almost surely, 2^108118939 is an apocalyptic number.

108118939 is a deficient number, since it is larger than the sum of its proper divisors (67685).

108118939 is an equidigital number, since it uses as much as digits as its factorization.

108118939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67684.

The product of its (nonzero) digits is 15552, while the sum is 40.

The square root of 108118939 is about 10398.0257260693. The cubic root of 108118939 is about 476.3950698747.

The spelling of 108118939 in words is "one hundred eight million, one hundred eighteen thousand, nine hundred thirty-nine".