1297083971 has 2 divisors, whose sum is σ = 1297083972. Its totient is φ = 1297083970.

The previous prime is 1297083967. The next prime is 1297084013. The reversal of 1297083971 is 1793807921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1297083971 - 2² = 1297083967 is a prime.

It is not a weakly prime, because it can be changed into another prime (1297083961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648541985 + 648541986.

It is an arithmetic number, because the mean of its divisors is an integer number (648541986).

Almost surely, 2^1297083971 is an apocalyptic number.

1297083971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297083971 is an equidigital number, since it uses as much as digits as its factorization.

1297083971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 1297083971 is about 36015.0520060710. The cubic root of 1297083971 is about 1090.5762379723.

The spelling of 1297083971 in words is "one billion, two hundred ninety-seven million, eighty-three thousand, nine hundred seventy-one".