109131608 has 32 divisors (see below), whose sum is σ = 207567360. Its totient is φ = 53786880.

The previous prime is 109131599. The next prime is 109131641. The reversal of 109131608 is 806131901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236498 + ... + 236958.

It is an arithmetic number, because the mean of its divisors is an integer number (6486480).

Almost surely, 2^109131608 is an apocalyptic number.

It is an amenable number.

109131608 is a deficient number, since it is larger than the sum of its proper divisors (98435752).

109131608 is a wasteful number, since it uses less digits than its factorization.

109131608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 109131608 is about 10446.6074876009. The cubic root of 109131608 is about 477.8777953620.

It can be divided in two parts, 10913 and 1608, that added together give a palindrome (12521).

The spelling of 109131608 in words is "one hundred nine million, one hundred thirty-one thousand, six hundred eight".