108147939 has 8 divisors (see below), whose sum is σ = 144372480. Its totient is φ = 72011016.

The previous prime is 108147911. The next prime is 108147973. The reversal of 108147939 is 939741801.

It is a happy number.

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

It is not a de Polignac number, because 108147939 - 2⁹ = 108147427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108147939.

It is not an unprimeable number, because it can be changed into a prime (108147539) 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, 18967 + ... + 24000.

It is an arithmetic number, because the mean of its divisors is an integer number (18046560).

Almost surely, 2^108147939 is an apocalyptic number.

108147939 is a deficient number, since it is larger than the sum of its proper divisors (36224541).

108147939 is an equidigital number, since it uses as much as digits as its factorization.

108147939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43809.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 108147939 is about 10399.4201280648. The cubic root of 108147939 is about 476.4376594590.

The spelling of 108147939 in words is "one hundred eight million, one hundred forty-seven thousand, nine hundred thirty-nine".