131026525 has 12 divisors (see below), whose sum is σ = 185683552. Its totient is φ = 89846640.

The previous prime is 131026523. The next prime is 131026537. The reversal of 131026525 is 525620131.

It is not a de Polignac number, because 131026525 - 2¹ = 131026523 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 131026525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131026523) 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, 374187 + ... + 374536.

Almost surely, 2^131026525 is an apocalyptic number.

It is an amenable number.

131026525 is a deficient number, since it is larger than the sum of its proper divisors (54657027).

131026525 is an equidigital number, since it uses as much as digits as its factorization.

131026525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748740 (or 748735 counting only the distinct ones).

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

The square root of 131026525 is about 11446.6818336145. The cubic root of 131026525 is about 507.9095838525.

Adding to 131026525 its reverse (525620131), we get a palindrome (656646656).

The spelling of 131026525 in words is "one hundred thirty-one million, twenty-six thousand, five hundred twenty-five".