108108109 has 4 divisors (see below), whose sum is σ = 109589116. Its totient is φ = 106627104.

The previous prime is 108108097. The next prime is 108108113. The reversal of 108108109 is 901801801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18748900 + 89359209 = 4330^2 + 9453^2 .

It is a cyclic number.

It is not a de Polignac number, because 108108109 - 2¹³ = 108099917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108108179) 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, 740394 + ... + 740539.

It is an arithmetic number, because the mean of its divisors is an integer number (27397279).

Almost surely, 2^108108109 is an apocalyptic number.

It is an amenable number.

108108109 is a deficient number, since it is larger than the sum of its proper divisors (1481007).

108108109 is an equidigital number, since it uses as much as digits as its factorization.

108108109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481006.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 108108109 is about 10397.5049410904. The cubic root of 108108109 is about 476.3791629148.

The spelling of 108108109 in words is "one hundred eight million, one hundred eight thousand, one hundred nine".