131413525 has 12 divisors (see below), whose sum is σ = 163408192. Its totient is φ = 104837040.

The previous prime is 131413523. The next prime is 131413531. The reversal of 131413525 is 525314131.

It is a happy number.

It is not a de Polignac number, because 131413525 - 2¹ = 131413523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131413525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131413523) 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, 2014 + ... + 16336.

Almost surely, 2^131413525 is an apocalyptic number.

It is an amenable number.

131413525 is a deficient number, since it is larger than the sum of its proper divisors (31994667).

131413525 is a wasteful number, since it uses less digits than its factorization.

131413525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14700 (or 14695 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 131413525 is about 11463.5738319252. The cubic root of 131413525 is about 508.4091463265.

Adding to 131413525 its reverse (525314131), we get a palindrome (656727656).

The spelling of 131413525 in words is "one hundred thirty-one million, four hundred thirteen thousand, five hundred twenty-five".