108138056 has 16 divisors (see below), whose sum is σ = 218355900. Its totient is φ = 49909824.

The previous prime is 108138049. The next prime is 108138059. The reversal of 108138056 is 650831801.

It can be written as a sum of positive squares in 2 ways, for example, as 97022500 + 11115556 = 9850^2 + 3334^2 .

It is not an unprimeable number, because it can be changed into a prime (108138059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519791 + ... + 519998.

Almost surely, 2^108138056 is an apocalyptic number.

It is an amenable number.

108138056 is an abundant number, since it is smaller than the sum of its proper divisors (110217844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108138056 is a wasteful number, since it uses less digits than its factorization.

108138056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039808 (or 1039804 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 108138056 is about 10398.9449464838. The cubic root of 108138056 is about 476.4231460777.

Adding to 108138056 its reverse (650831801), we get a palindrome (758969857).

The spelling of 108138056 in words is "one hundred eight million, one hundred thirty-eight thousand, fifty-six".