131136013 has 4 divisors (see below), whose sum is σ = 131159200. Its totient is φ = 131112828.

The previous prime is 131136001. The next prime is 131136017. The reversal of 131136013 is 310631131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131136013 - 2⁵ = 131135981 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 (131136017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088 + ... + 16486.

It is an arithmetic number, because the mean of its divisors is an integer number (32789800).

Almost surely, 2^131136013 is an apocalyptic number.

It is an amenable number.

131136013 is a deficient number, since it is larger than the sum of its proper divisors (23187).

131136013 is an equidigital number, since it uses as much as digits as its factorization.

131136013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23186.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 131136013 is about 11451.4633562702. The cubic root of 131136013 is about 508.0510171034.

Adding to 131136013 its reverse (310631131), we get a palindrome (441767144).

The spelling of 131136013 in words is "one hundred thirty-one million, one hundred thirty-six thousand, thirteen".