131507613 has 12 divisors (see below), whose sum is σ = 190055008. Its totient is φ = 87625800.

The previous prime is 131507609. The next prime is 131507639. The reversal of 131507613 is 316705131.

It is not a de Polignac number, because 131507613 - 2² = 131507609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131507603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30438 + ... + 34488.

Almost surely, 2^131507613 is an apocalyptic number.

It is an amenable number.

131507613 is a deficient number, since it is larger than the sum of its proper divisors (58547395).

131507613 is a wasteful number, since it uses less digits than its factorization.

131507613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7664 (or 7661 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 131507613 is about 11467.6768789498. The cubic root of 131507613 is about 508.5304524303.

The spelling of 131507613 in words is "one hundred thirty-one million, five hundred seven thousand, six hundred thirteen".