131530542673 has 2 divisors, whose sum is σ = 131530542674. Its totient is φ = 131530542672.

The previous prime is 131530542667. The next prime is 131530542677. The reversal of 131530542673 is 376245035131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105792116049 + 25738426624 = 325257^2 + 160432^2 .

It is a cyclic number.

It is not a de Polignac number, because 131530542673 - 2⁹ = 131530542161 is a prime.

It is not a weakly prime, because it can be changed into another prime (131530542677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65765271336 + 65765271337.

It is an arithmetic number, because the mean of its divisors is an integer number (65765271337).

Almost surely, 2^131530542673 is an apocalyptic number.

It is an amenable number.

131530542673 is a deficient number, since it is larger than the sum of its proper divisors (1).

131530542673 is an equidigital number, since it uses as much as digits as its factorization.

131530542673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 131530542673 in words is "one hundred thirty-one billion, five hundred thirty million, five hundred forty-two thousand, six hundred seventy-three".