131313525 has 48 divisors (see below), whose sum is σ = 262733184. Its totient is φ = 56494080.

The previous prime is 131313521. The next prime is 131313587. The reversal of 131313525 is 525313131.

It is not a de Polignac number, because 131313525 - 2² = 131313521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131313495 and 131313504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131313521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1569 + ... + 16281.

It is an arithmetic number, because the mean of its divisors is an integer number (5473608).

Almost surely, 2^131313525 is an apocalyptic number.

131313525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131313525 is an abundant number, since it is smaller than the sum of its proper divisors (131419659).

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

131313525 is a wasteful number, since it uses less digits than its factorization.

131313525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14750 (or 14745 counting only the distinct ones).

The product of its digits is 1350, while the sum is 24.

The square root of 131313525 is about 11459.2113602988. The cubic root of 131313525 is about 508.2801544895.

Adding to 131313525 its reverse (525313131), we get a palindrome (656626656).

The spelling of 131313525 in words is "one hundred thirty-one million, three hundred thirteen thousand, five hundred twenty-five".