131520304 has 20 divisors (see below), whose sum is σ = 258313576. Its totient is φ = 64858752.

The previous prime is 131520247. The next prime is 131520317. The reversal of 131520304 is 403025131.

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, 55134 + ... + 57469.

Almost surely, 2^131520304 is an apocalyptic number.

It is an amenable number.

131520304 is a deficient number, since it is larger than the sum of its proper divisors (126793272).

131520304 is a wasteful number, since it uses less digits than its factorization.

131520304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112684 (or 112678 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 131520304 is about 11468.2302034795. The cubic root of 131520304 is about 508.5468102980.

Adding to 131520304 its reverse (403025131), we get a palindrome (534545435).

The spelling of 131520304 in words is "one hundred thirty-one million, five hundred twenty thousand, three hundred four".