1297341511 has 2 divisors, whose sum is σ = 1297341512. Its totient is φ = 1297341510.

The previous prime is 1297341503. The next prime is 1297341523. The reversal of 1297341511 is 1151437921.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1297341511 - 2³ = 1297341503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1297341541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648670755 + 648670756.

It is an arithmetic number, because the mean of its divisors is an integer number (648670756).

Almost surely, 2^1297341511 is an apocalyptic number.

1297341511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297341511 is an equidigital number, since it uses as much as digits as its factorization.

1297341511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 34.

The square root of 1297341511 is about 36018.6272781182. The cubic root of 1297341511 is about 1090.6484122811.

The spelling of 1297341511 in words is "one billion, two hundred ninety-seven million, three hundred forty-one thousand, five hundred eleven".