108806138 has 16 divisors (see below), whose sum is σ = 190045440. Its totient is φ = 45751056.

The previous prime is 108806119. The next prime is 108806153. The reversal of 108806138 is 831608801.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 108806098 and 108806107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72578 + ... + 74061.

It is an arithmetic number, because the mean of its divisors is an integer number (11877840).

Almost surely, 2^108806138 is an apocalyptic number.

108806138 is a deficient number, since it is larger than the sum of its proper divisors (81239302).

108806138 is a wasteful number, since it uses less digits than its factorization.

108806138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146701.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 108806138 is about 10431.0180711185. The cubic root of 108806138 is about 477.4022540529.

The spelling of 108806138 in words is "one hundred eight million, eight hundred six thousand, one hundred thirty-eight".