108918913 has 8 divisors (see below), whose sum is σ = 109883232. Its totient is φ = 107959296.

The previous prime is 108918889. The next prime is 108918917. The reversal of 108918913 is 319819801.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108918913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108918917) 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, 57406 + ... + 59272.

It is an arithmetic number, because the mean of its divisors is an integer number (13735404).

Almost surely, 2^108918913 is an apocalyptic number.

It is an amenable number.

108918913 is a deficient number, since it is larger than the sum of its proper divisors (964319).

108918913 is a wasteful number, since it uses less digits than its factorization.

108918913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351.

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

The square root of 108918913 is about 10436.4224234169. The cubic root of 108918913 is about 477.5671358323.

It can be divided in two parts, 1089 and 18913, that added together give a palindrome (20002).

The spelling of 108918913 in words is "one hundred eight million, nine hundred eighteen thousand, nine hundred thirteen".