1297634711 has 2 divisors, whose sum is σ = 1297634712. Its totient is φ = 1297634710.

The previous prime is 1297634671. The next prime is 1297634713. The reversal of 1297634711 is 1174367921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1297634711 - 2⁶ = 1297634647 is a prime.

Together with 1297634713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1297634713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648817355 + 648817356.

It is an arithmetic number, because the mean of its divisors is an integer number (648817356).

Almost surely, 2^1297634711 is an apocalyptic number.

1297634711 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297634711 is an equidigital number, since it uses as much as digits as its factorization.

1297634711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 41.

The square root of 1297634711 is about 36022.6971644268. The cubic root of 1297634711 is about 1090.7305685021.

The spelling of 1297634711 in words is "one billion, two hundred ninety-seven million, six hundred thirty-four thousand, seven hundred eleven".