1271252277167 has 2 divisors, whose sum is σ = 1271252277168. Its totient is φ = 1271252277166.

The previous prime is 1271252277133. The next prime is 1271252277173. The reversal of 1271252277167 is 7617722521721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1271252277167 - 2³⁸ = 996374370223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1271252277107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635626138583 + 635626138584.

It is an arithmetic number, because the mean of its divisors is an integer number (635626138584).

Almost surely, 2^{1271252277167} is an apocalyptic number.

1271252277167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1271252277167 is an equidigital number, since it uses as much as digits as its factorization.

1271252277167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152480, while the sum is 50.

Adding to 1271252277167 its reverse (7617722521721), we get a palindrome (8888974798888).

The spelling of 1271252277167 in words is "one trillion, two hundred seventy-one billion, two hundred fifty-two million, two hundred seventy-seven thousand, one hundred sixty-seven".