131253525 has 72 divisors (see below), whose sum is σ = 264316416. Its totient is φ = 61776000.

The previous prime is 131253509. The next prime is 131253527. The reversal of 131253525 is 525352131.

It is a happy number.

131253525 is a `hidden beast` number, since 13 + 125 + 3 + 525 = 666.

It is not a de Polignac number, because 131253525 - 2⁴ = 131253509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131253527) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 66300 + ... + 68250.

Almost surely, 2^131253525 is an apocalyptic number.

131253525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131253525 is an abundant number, since it is smaller than the sum of its proper divisors (133062891).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131253525 is a wasteful number, since it uses less digits than its factorization.

131253525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003 (or 1995 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 131253525 is about 11456.5930799693. The cubic root of 131253525 is about 508.2027279504.

The spelling of 131253525 in words is "one hundred thirty-one million, two hundred fifty-three thousand, five hundred twenty-five".