131444525 has 6 divisors (see below), whose sum is σ = 162991242. Its totient is φ = 105155600.

The previous prime is 131444497. The next prime is 131444549. The reversal of 131444525 is 525444131.

It can be written as a sum of positive squares in 3 ways, for example, as 67081 + 131377444 = 259^2 + 11462^2 .

It is not a de Polignac number, because 131444525 - 2²⁴ = 114667309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2628866 + ... + 2628915.

It is an arithmetic number, because the mean of its divisors is an integer number (27165207).

Almost surely, 2^131444525 is an apocalyptic number.

It is an amenable number.

131444525 is a deficient number, since it is larger than the sum of its proper divisors (31546717).

131444525 is an equidigital number, since it uses as much as digits as its factorization.

131444525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5257791 (or 5257786 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 131444525 is about 11464.9258610773. The cubic root of 131444525 is about 508.4491205083.

Adding to 131444525 its reverse (525444131), we get a palindrome (656888656).

The spelling of 131444525 in words is "one hundred thirty-one million, four hundred forty-four thousand, five hundred twenty-five".