108137531 has 8 divisors (see below), whose sum is σ = 115529280. Its totient is φ = 100915848.

The previous prime is 108137521. The next prime is 108137551. The reversal of 108137531 is 135731801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108137531 is a prime.

It is a super-2 number, since 2×108137531² = 23387451221551922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108137494 and 108137503.

It is not an unprimeable number, because it can be changed into a prime (108137521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41201 + ... + 43746.

It is an arithmetic number, because the mean of its divisors is an integer number (14441160).

Almost surely, 2^108137531 is an apocalyptic number.

108137531 is a deficient number, since it is larger than the sum of its proper divisors (7391749).

108137531 is an equidigital number, since it uses as much as digits as its factorization.

108137531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85033.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 108137531 is about 10398.9197035077. The cubic root of 108137531 is about 476.4223750801.

The spelling of 108137531 in words is "one hundred eight million, one hundred thirty-seven thousand, five hundred thirty-one".