131613245 has 16 divisors (see below), whose sum is σ = 165739392. Its totient is φ = 100140480.

The previous prime is 131613217. The next prime is 131613253. The reversal of 131613245 is 542316131.

It is not a de Polignac number, because 131613245 - 2⁸ = 131612989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17654 + ... + 23976.

It is an arithmetic number, because the mean of its divisors is an integer number (10358712).

Almost surely, 2^131613245 is an apocalyptic number.

It is an amenable number.

131613245 is a deficient number, since it is larger than the sum of its proper divisors (34126147).

131613245 is a wasteful number, since it uses less digits than its factorization.

131613245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6532.

The product of its digits is 2160, while the sum is 26.

The square root of 131613245 is about 11472.2815952190. The cubic root of 131613245 is about 508.6665730989. Note that the first 3 decimals are identical.

Adding to 131613245 its reverse (542316131), we get a palindrome (673929376).

The spelling of 131613245 in words is "one hundred thirty-one million, six hundred thirteen thousand, two hundred forty-five".