1297455683 has 2 divisors, whose sum is σ = 1297455684. Its totient is φ = 1297455682.

The previous prime is 1297455673. The next prime is 1297455689. The reversal of 1297455683 is 3865547921.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1297455683 - 2⁸ = 1297455427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1297455689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648727841 + 648727842.

It is an arithmetic number, because the mean of its divisors is an integer number (648727842).

Almost surely, 2^1297455683 is an apocalyptic number.

1297455683 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297455683 is an equidigital number, since it uses as much as digits as its factorization.

1297455683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 50.

The square root of 1297455683 is about 36020.2121454053. The cubic root of 1297455683 is about 1090.6804053626.

The spelling of 1297455683 in words is "one billion, two hundred ninety-seven million, four hundred fifty-five thousand, six hundred eighty-three".