131517253 has 12 divisors (see below), whose sum is σ = 159669472. Its totient is φ = 106096320.

The previous prime is 131517247. The next prime is 131517293. The reversal of 131517253 is 352715131.

It is a de Polignac number, because none of the positive numbers 2^k-131517253 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131517293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30483 + ... + 34528.

Almost surely, 2^131517253 is an apocalyptic number.

It is an amenable number.

131517253 is a deficient number, since it is larger than the sum of its proper divisors (28152219).

131517253 is an equidigital number, since it uses as much as digits as its factorization.

131517253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65052 (or 65035 counting only the distinct ones).

The product of its digits is 3150, while the sum is 28.

The square root of 131517253 is about 11468.0971830553. The cubic root of 131517253 is about 508.5428778549.

The spelling of 131517253 in words is "one hundred thirty-one million, five hundred seventeen thousand, two hundred fifty-three".