131536013 has 8 divisors (see below), whose sum is σ = 151285632. Its totient is φ = 112026096.

The previous prime is 131536001. The next prime is 131536019. The reversal of 131536013 is 310635131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-131536013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131536013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131536019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58745 + ... + 60942.

It is an arithmetic number, because the mean of its divisors is an integer number (18910704).

Almost surely, 2^131536013 is an apocalyptic number.

It is an amenable number.

131536013 is a deficient number, since it is larger than the sum of its proper divisors (19749619).

131536013 is a wasteful number, since it uses less digits than its factorization.

131536013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119851.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 131536013 is about 11468.9150751063. The cubic root of 131536013 is about 508.5670567126.

The spelling of 131536013 in words is "one hundred thirty-one million, five hundred thirty-six thousand, thirteen".