247443713131297 has 2 divisors, whose sum is σ = 247443713131298. Its totient is φ = 247443713131296.

The previous prime is 247443713131271. The next prime is 247443713131333. The reversal of 247443713131297 is 792131317344742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138622743201856 + 108820969929441 = 11773816^2 + 10431729^2 .

It is a cyclic number.

It is not a de Polignac number, because 247443713131297 - 2¹⁵ = 247443713098529 is a prime.

It is a super-2 number, since 2×247443713131297² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247443713131697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123721856565648 + 123721856565649.

It is an arithmetic number, because the mean of its divisors is an integer number (123721856565649).

Almost surely, 2^{247443713131297} is an apocalyptic number.

It is an amenable number.

247443713131297 is a deficient number, since it is larger than the sum of its proper divisors (1).

247443713131297 is an equidigital number, since it uses as much as digits as its factorization.

247443713131297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21337344, while the sum is 58.

The spelling of 247443713131297 in words is "two hundred forty-seven trillion, four hundred forty-three billion, seven hundred thirteen million, one hundred thirty-one thousand, two hundred ninety-seven".