108131709 has 16 divisors (see below), whose sum is σ = 165826688. Its totient is φ = 61394112.

The previous prime is 108131701. The next prime is 108131729. The reversal of 108131709 is 907131801.

It is not a de Polignac number, because 108131709 - 2³ = 108131701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108131701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13102 + ... + 19695.

It is an arithmetic number, because the mean of its divisors is an integer number (10364168).

Almost surely, 2^108131709 is an apocalyptic number.

It is an amenable number.

108131709 is a deficient number, since it is larger than the sum of its proper divisors (57694979).

108131709 is a wasteful number, since it uses less digits than its factorization.

108131709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32964.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 108131709 is about 10398.6397668157. The cubic root of 108131709 is about 476.4138249162.

The spelling of 108131709 in words is "one hundred eight million, one hundred thirty-one thousand, seven hundred nine".