131544678725 has 12 divisors (see below), whose sum is σ = 166908784416. Its totient is φ = 102788399280.

The previous prime is 131544678721. The next prime is 131544678731. The reversal of 131544678725 is 527876445131.

It is not a de Polignac number, because 131544678725 - 2² = 131544678721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131544678721) 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, 61182497 + ... + 61184646.

It is an arithmetic number, because the mean of its divisors is an integer number (13909065368).

Almost surely, 2^131544678725 is an apocalyptic number.

It is an amenable number.

131544678725 is a deficient number, since it is larger than the sum of its proper divisors (35364105691).

131544678725 is a wasteful number, since it uses less digits than its factorization.

131544678725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122367196 (or 122367191 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 53.

The spelling of 131544678725 in words is "one hundred thirty-one billion, five hundred forty-four million, six hundred seventy-eight thousand, seven hundred twenty-five".