1331415258497 has 2 divisors, whose sum is σ = 1331415258498. Its totient is φ = 1331415258496.

The previous prime is 1331415258479. The next prime is 1331415258539. The reversal of 1331415258497 is 7948525141331.

It is a happy number.

Together with previous prime (1331415258479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1069106368576 + 262308889921 = 1033976^2 + 512161^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331415258497 - 2³⁶ = 1262695781761 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331415258427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665707629248 + 665707629249.

It is an arithmetic number, because the mean of its divisors is an integer number (665707629249).

Almost surely, 2^{1331415258497} is an apocalyptic number.

It is an amenable number.

1331415258497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331415258497 is an equidigital number, since it uses as much as digits as its factorization.

1331415258497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 53.

The spelling of 1331415258497 in words is "one trillion, three hundred thirty-one billion, four hundred fifteen million, two hundred fifty-eight thousand, four hundred ninety-seven".