131512524 has 96 divisors (see below), whose sum is σ = 363412224. Its totient is φ = 36491520.

The previous prime is 131512501. The next prime is 131512529. The reversal of 131512524 is 425215131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131512494 and 131512503.

It is not an unprimeable number, because it can be changed into a prime (131512529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296647 + ... + 297089.

It is an arithmetic number, because the mean of its divisors is an integer number (3785544).

Almost surely, 2^131512524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131512524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181706112).

131512524 is an abundant number, since it is smaller than the sum of its proper divisors (231899700).

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

131512524 is a wasteful number, since it uses less digits than its factorization.

131512524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 645 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 131512524 is about 11467.8910005284. The cubic root of 131512524 is about 508.5367825125.

Adding to 131512524 its reverse (425215131), we get a palindrome (556727655).

The spelling of 131512524 in words is "one hundred thirty-one million, five hundred twelve thousand, five hundred twenty-four".