1276673297 has 2 divisors, whose sum is σ = 1276673298. Its totient is φ = 1276673296.

The previous prime is 1276673269. The next prime is 1276673303. The reversal of 1276673297 is 7923766721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 715883536 + 560789761 = 26756^2 + 23681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1276673297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1276673257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638336648 + 638336649.

It is an arithmetic number, because the mean of its divisors is an integer number (638336649).

Almost surely, 2^1276673297 is an apocalyptic number.

It is an amenable number.

1276673297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276673297 is an equidigital number, since it uses as much as digits as its factorization.

1276673297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 50.

The square root of 1276673297 is about 35730.5653047919. The cubic root of 1276673297 is about 1084.8255991852.

The spelling of 1276673297 in words is "one billion, two hundred seventy-six million, six hundred seventy-three thousand, two hundred ninety-seven".