131885328 has 20 divisors (see below), whose sum is σ = 340703888. Its totient is φ = 43961760.

The previous prime is 131885323. The next prime is 131885329. The reversal of 131885328 is 823588131.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (131885321) 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 3 ways as a sum of consecutive naturals, for example, 1373758 + ... + 1373853.

Almost surely, 2^131885328 is an apocalyptic number.

It is an amenable number.

131885328 is an abundant number, since it is smaller than the sum of its proper divisors (208818560).

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

131885328 is a wasteful number, since it uses less digits than its factorization.

131885328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747622 (or 2747616 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 131885328 is about 11484.1337505273. The cubic root of 131885328 is about 509.0168526012.

The spelling of 131885328 in words is "one hundred thirty-one million, eight hundred eighty-five thousand, three hundred twenty-eight".