1267085797 has 2 divisors, whose sum is σ = 1267085798. Its totient is φ = 1267085796.

The previous prime is 1267085783. The next prime is 1267085821. The reversal of 1267085797 is 7975807621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1119973156 + 147112641 = 33466^2 + 12129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1267085797 - 2⁷ = 1267085669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1267085707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633542898 + 633542899.

It is an arithmetic number, because the mean of its divisors is an integer number (633542899).

Almost surely, 2^1267085797 is an apocalyptic number.

It is an amenable number.

1267085797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1267085797 is an equidigital number, since it uses as much as digits as its factorization.

1267085797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 52.

The square root of 1267085797 is about 35596.1486259399. The cubic root of 1267085797 is about 1082.1031824296.

The spelling of 1267085797 in words is "one billion, two hundred sixty-seven million, eighty-five thousand, seven hundred ninety-seven".