131366525 has 6 divisors (see below), whose sum is σ = 162894522. Its totient is φ = 105093200.

The previous prime is 131366483. The next prime is 131366563. The reversal of 131366525 is 525663131.

It can be written as a sum of positive squares in 3 ways, for example, as 30625156 + 100741369 = 5534^2 + 10037^2 .

It is not a de Polignac number, because 131366525 - 2⁶ = 131366461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131366491 and 131366500.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2627306 + ... + 2627355.

It is an arithmetic number, because the mean of its divisors is an integer number (27149087).

Almost surely, 2^131366525 is an apocalyptic number.

It is an amenable number.

131366525 is a deficient number, since it is larger than the sum of its proper divisors (31527997).

131366525 is an equidigital number, since it uses as much as digits as its factorization.

131366525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5254671 (or 5254666 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 131366525 is about 11461.5236770684. The cubic root of 131366525 is about 508.3485283164.

The spelling of 131366525 in words is "one hundred thirty-one million, three hundred sixty-six thousand, five hundred twenty-five".