131812272530797 has 2 divisors, whose sum is σ = 131812272530798. Its totient is φ = 131812272530796.

The previous prime is 131812272530789. The next prime is 131812272530831. The reversal of 131812272530797 is 797035272218131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126246325211721 + 5565947319076 = 11235939^2 + 2359226^2 .

It is a cyclic number.

It is not a de Polignac number, because 131812272530797 - 2³ = 131812272530789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131812272530747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65906136265398 + 65906136265399.

It is an arithmetic number, because the mean of its divisors is an integer number (65906136265399).

Almost surely, 2^{131812272530797} is an apocalyptic number.

It is an amenable number.

131812272530797 is a deficient number, since it is larger than the sum of its proper divisors (1).

131812272530797 is an equidigital number, since it uses as much as digits as its factorization.

131812272530797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8890560, while the sum is 58.

The spelling of 131812272530797 in words is "one hundred thirty-one trillion, eight hundred twelve billion, two hundred seventy-two million, five hundred thirty thousand, seven hundred ninety-seven".