131582332 has 12 divisors (see below), whose sum is σ = 263164720. Its totient is φ = 56392416.

The previous prime is 131582327. The next prime is 131582351. The reversal of 131582332 is 233285131.

131582332 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 4699369 = 131582332 / (1 + 3 + 1 + 5 + 8 + 2 + 3 + 3 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 131582332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2349657 + ... + 2349712.

Almost surely, 2^131582332 is an apocalyptic number.

It is an amenable number.

131582332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131582332 is a wasteful number, since it uses less digits than its factorization.

131582332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4699380 (or 4699378 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 131582332 is about 11470.9342252495. The cubic root of 131582332 is about 508.6267451899.

The spelling of 131582332 in words is "one hundred thirty-one million, five hundred eighty-two thousand, three hundred thirty-two".