108136539 has 20 divisors (see below), whose sum is σ = 184615024. Its totient is φ = 61791984.

The previous prime is 108136517. The next prime is 108136577. The reversal of 108136539 is 935631801.

It is a happy number.

108136539 is a `hidden beast` number, since 10 + 81 + 36 + 539 = 666.

It is not a de Polignac number, because 108136539 - 2⁸ = 108136283 is a prime.

It is a super-2 number, since 2×108136539² = 23387022133797042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108136139) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 94792 + ... + 95925.

Almost surely, 2^108136539 is an apocalyptic number.

108136539 is a deficient number, since it is larger than the sum of its proper divisors (76478485).

108136539 is an equidigital number, since it uses as much as digits as its factorization.

108136539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190736 (or 190727 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 108136539 is about 10398.8720061361. The cubic root of 108136539 is about 476.4209182549.

The spelling of 108136539 in words is "one hundred eight million, one hundred thirty-six thousand, five hundred thirty-nine".