131444252525 has 24 divisors (see below), whose sum is σ = 163384393920. Its totient is φ = 104901834240.

The previous prime is 131444252521. The next prime is 131444252551. The reversal of 131444252525 is 525252444131.

It is not a de Polignac number, because 131444252525 - 2² = 131444252521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131444252521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22189214 + ... + 22195136.

It is an arithmetic number, because the mean of its divisors is an integer number (6807683080).

Almost surely, 2^131444252525 is an apocalyptic number.

It is an amenable number.

131444252525 is a deficient number, since it is larger than the sum of its proper divisors (31940141395).

131444252525 is a wasteful number, since it uses less digits than its factorization.

131444252525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7925 (or 7920 counting only the distinct ones).

The product of its digits is 192000, while the sum is 38.

Adding to 131444252525 its reverse (525252444131), we get a palindrome (656696696656).

The spelling of 131444252525 in words is "one hundred thirty-one billion, four hundred forty-four million, two hundred fifty-two thousand, five hundred twenty-five".