131613 has 8 divisors (see below), whose sum is σ = 184800. Its totient is φ = 83088.

The previous prime is 131611. The next prime is 131617. The reversal of 131613 is 316131.

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

It is not a de Polignac number, because 131613 - 2¹ = 131611 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131592 and 131601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131611) 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, 1098 + ... + 1211.

It is an arithmetic number, because the mean of its divisors is an integer number (23100).

2¹³¹⁶¹³ is an apocalyptic number.

It is an amenable number.

131613 is a deficient number, since it is larger than the sum of its proper divisors (53187).

131613 is a wasteful number, since it uses less digits than its factorization.

131613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331.

The product of its digits is 54, while the sum is 15.

The square root of 131613 is about 362.7850603319. The cubic root of 131613 is about 50.8666257469.

Adding to 131613 its reverse (316131), we get a palindrome (447744).

The spelling of 131613 in words is "one hundred thirty-one thousand, six hundred thirteen".