131725256424136 has 64 divisors (see below), whose sum is σ = 253290109590000. Its totient is φ = 64184812707840.

The previous prime is 131725256424127. The next prime is 131725256424161. The reversal of 131725256424136 is 631424652527131.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 75994701640036 + 55730554784100 = 8717494^2 + 7465290^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4326079440 + ... + 4326109888.

Almost surely, 2^{131725256424136} is an apocalyptic number.

It is an amenable number.

131725256424136 is a deficient number, since it is larger than the sum of its proper divisors (121564853165864).

131725256424136 is a wasteful number, since it uses less digits than its factorization.

131725256424136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44722 (or 44718 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 52.

The spelling of 131725256424136 in words is "one hundred thirty-one trillion, seven hundred twenty-five billion, two hundred fifty-six million, four hundred twenty-four thousand, one hundred thirty-six".