131444325315 has 64 divisors (see below), whose sum is σ = 246638937600. Its totient is φ = 66235439232.

The previous prime is 131444325307. The next prime is 131444325343. The reversal of 131444325315 is 513523444131.

131444325315 is a `hidden beast` number, since 1 + 3 + 14 + 4 + 4 + 325 + 315 = 666.

It is not a de Polignac number, because 131444325315 - 2³ = 131444325307 is a prime.

It is a super-2 number, since 2×131444325315² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131444325315.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 888052 + ... + 1025438.

It is an arithmetic number, because the mean of its divisors is an integer number (3853733400).

Almost surely, 2^131444325315 is an apocalyptic number.

131444325315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131444325315 is a deficient number, since it is larger than the sum of its proper divisors (115194612285).

131444325315 is a wasteful number, since it uses less digits than its factorization.

131444325315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137793 (or 137787 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

Adding to 131444325315 its reverse (513523444131), we get a palindrome (644967769446).

The spelling of 131444325315 in words is "one hundred thirty-one billion, four hundred forty-four million, three hundred twenty-five thousand, three hundred fifteen".