131873028 has 48 divisors (see below), whose sum is σ = 352665600. Its totient is φ = 37570464.

The previous prime is 131872999. The next prime is 131873047. The reversal of 131873028 is 820378131.

It is a self number, because there is not a number n which added to its sum of digits gives 131873028.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 30123 + ... + 34221.

It is an arithmetic number, because the mean of its divisors is an integer number (7347200).

Almost surely, 2^131873028 is an apocalyptic number.

It is an amenable number.

131873028 is an abundant number, since it is smaller than the sum of its proper divisors (220792572).

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

131873028 is a wasteful number, since it uses less digits than its factorization.

131873028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496 (or 4494 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 131873028 is about 11483.5982165870. The cubic root of 131873028 is about 509.0010279905.

The spelling of 131873028 in words is "one hundred thirty-one million, eight hundred seventy-three thousand, twenty-eight".