1297369 has 2 divisors, whose sum is σ = 1297370. Its totient is φ = 1297368.

The previous prime is 1297367. The next prime is 1297393. The reversal of 1297369 is 9637921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 921600 + 375769 = 960^2 + 613^2 .

It is a cyclic number.

It is not a de Polignac number, because 1297369 - 2¹ = 1297367 is a prime.

It is a super-2 number, since 2×1297369² = 3366332644322, which contains 22 as substring.

Together with 1297367, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1297367) 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, 648684 + 648685.

It is an arithmetic number, because the mean of its divisors is an integer number (648685).

2^1297369 is an apocalyptic number.

It is an amenable number.

1297369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297369 is an equidigital number, since it uses as much as digits as its factorization.

1297369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 37.

The square root of 1297369 is about 1139.0210709201. The cubic root of 1297369 is about 109.0656115373.

The spelling of 1297369 in words is "one million, two hundred ninety-seven thousand, three hundred sixty-nine".