131315792 has 10 divisors (see below), whose sum is σ = 254424378. Its totient is φ = 65657888.

The previous prime is 131315777. The next prime is 131315797. The reversal of 131315792 is 297513131.

It can be written as a sum of positive squares in only one way, i.e., 118897216 + 12418576 = 10904^2 + 3524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131315797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4103603 + ... + 4103634.

Almost surely, 2^131315792 is an apocalyptic number.

It is an amenable number.

131315792 is a deficient number, since it is larger than the sum of its proper divisors (123108586).

131315792 is an equidigital number, since it uses as much as digits as its factorization.

131315792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8207245 (or 8207239 counting only the distinct ones).

The product of its digits is 5670, while the sum is 32.

The square root of 131315792 is about 11459.3102759285. The cubic root of 131315792 is about 508.2830794598.

The spelling of 131315792 in words is "one hundred thirty-one million, three hundred fifteen thousand, seven hundred ninety-two".