131974538089 has 9 divisors (see below), whose sum is σ = 136693221847. Its totient is φ = 127413520024.

The previous prime is 131974538077. The next prime is 131974538149. The reversal of 131974538089 is 980835479131.

The square root of 131974538089 is 363283.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 69204246489 + 62770291600 = 263067^2 + 250540^2 .

It is not a de Polignac number, because 131974538089 - 2⁹ = 131974537577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131974538789) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10528944 + ... + 10541470.

Almost surely, 2^131974538089 is an apocalyptic number.

131974538089 is the 363283-rd square number.

131974538089 is the 181642-nd centered octagonal number.

It is an amenable number.

131974538089 is a deficient number, since it is larger than the sum of its proper divisors (4718683758).

131974538089 is an frugal number, since it uses more digits than its factorization.

131974538089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25112 (or 12556 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 131974538089 in words is "one hundred thirty-one billion, nine hundred seventy-four million, five hundred thirty-eight thousand, eighty-nine".