1273107697 has 2 divisors, whose sum is σ = 1273107698. Its totient is φ = 1273107696.

The previous prime is 1273107653. The next prime is 1273107733. The reversal of 1273107697 is 7967013721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 654541056 + 618566641 = 25584^2 + 24871^2 .

It is a cyclic number.

It is not a de Polignac number, because 1273107697 - 2¹¹ = 1273105649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1273107097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636553848 + 636553849.

It is an arithmetic number, because the mean of its divisors is an integer number (636553849).

Almost surely, 2^1273107697 is an apocalyptic number.

It is an amenable number.

1273107697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273107697 is an equidigital number, since it uses as much as digits as its factorization.

1273107697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 1273107697 is about 35680.6347617303. The cubic root of 1273107697 is about 1083.8147269514.

The spelling of 1273107697 in words is "one billion, two hundred seventy-three million, one hundred seven thousand, six hundred ninety-seven".