83131506 has 24 divisors (see below), whose sum is σ = 181871040. Its totient is φ = 27440856.

The previous prime is 83131493. The next prime is 83131511. The reversal of 83131506 is 60513138.

It is a self number, because there is not a number n which added to its sum of digits gives 83131506.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20566 + ... + 24273.

It is an arithmetic number, because the mean of its divisors is an integer number (7577960).

Almost surely, 2^83131506 is an apocalyptic number.

83131506 is an abundant number, since it is smaller than the sum of its proper divisors (98739534).

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

83131506 is a wasteful number, since it uses less digits than its factorization.

83131506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44950 (or 44947 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 83131506 is about 9117.6480519924. The cubic root of 83131506 is about 436.4373224759.

The spelling of 83131506 in words is "eighty-three million, one hundred thirty-one thousand, five hundred six".