131135613 has 12 divisors (see below), whose sum is σ = 203394240. Its totient is φ = 74934552.

The previous prime is 131135591. The next prime is 131135623. The reversal of 131135613 is 316531131.

It is not a de Polignac number, because 131135613 - 2⁹ = 131135101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131135623) 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, 445893 + ... + 446186.

It is an arithmetic number, because the mean of its divisors is an integer number (16949520).

Almost surely, 2^131135613 is an apocalyptic number.

It is an amenable number.

131135613 is a deficient number, since it is larger than the sum of its proper divisors (72258627).

131135613 is an equidigital number, since it uses as much as digits as its factorization.

131135613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892096 (or 892089 counting only the distinct ones).

The product of its digits is 810, while the sum is 24.

The square root of 131135613 is about 11451.4458912401. The cubic root of 131135613 is about 508.0505005389.

Adding to 131135613 its reverse (316531131), we get a palindrome (447666744).

The spelling of 131135613 in words is "one hundred thirty-one million, one hundred thirty-five thousand, six hundred thirteen".