131530932 has 48 divisors (see below), whose sum is σ = 367241280. Its totient is φ = 40470624.

The previous prime is 131530879. The next prime is 131530961. The reversal of 131530932 is 239035131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 131530896 and 131530905.

It is a congruent number.

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, 45438 + ... + 48245.

It is an arithmetic number, because the mean of its divisors is an integer number (7650860).

Almost surely, 2^131530932 is an apocalyptic number.

131530932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131530932 is an abundant number, since it is smaller than the sum of its proper divisors (235710348).

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

131530932 is a wasteful number, since it uses less digits than its factorization.

131530932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93709 (or 93701 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 131530932 is about 11468.6935611690. The cubic root of 131530932 is about 508.5605082842.

The spelling of 131530932 in words is "one hundred thirty-one million, five hundred thirty thousand, nine hundred thirty-two".