131445201044497 has 2 divisors, whose sum is σ = 131445201044498. Its totient is φ = 131445201044496.

The previous prime is 131445201044491. The next prime is 131445201044533. The reversal of 131445201044497 is 794440102544131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122698134532561 + 8747066511936 = 11076919^2 + 2957544^2 .

It is a cyclic number.

It is not a de Polignac number, because 131445201044497 - 2⁴³ = 122649108022289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131445201044497.

It is not a weakly prime, because it can be changed into another prime (131445201044491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65722600522248 + 65722600522249.

It is an arithmetic number, because the mean of its divisors is an integer number (65722600522249).

Almost surely, 2^{131445201044497} is an apocalyptic number.

It is an amenable number.

131445201044497 is a deficient number, since it is larger than the sum of its proper divisors (1).

131445201044497 is an equidigital number, since it uses as much as digits as its factorization.

131445201044497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 131445201044497 in words is "one hundred thirty-one trillion, four hundred forty-five billion, two hundred one million, forty-four thousand, four hundred ninety-seven".