131332304 has 20 divisors (see below), whose sum is σ = 259259076. Its totient is φ = 64426752.

The previous prime is 131332297. The next prime is 131332319. The reversal of 131332304 is 403233131.

It can be written as a sum of positive squares in 2 ways, for example, as 80066704 + 51265600 = 8948^2 + 7160^2 .

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, 76589 + ... + 78284.

Almost surely, 2^131332304 is an apocalyptic number.

It is an amenable number.

131332304 is a deficient number, since it is larger than the sum of its proper divisors (127926772).

131332304 is a wasteful number, since it uses less digits than its factorization.

131332304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154934 (or 154928 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 131332304 is about 11460.0307154911. The cubic root of 131332304 is about 508.3043828596.

Adding to 131332304 its reverse (403233131), we get a palindrome (534565435).

The spelling of 131332304 in words is "one hundred thirty-one million, three hundred thirty-two thousand, three hundred four".