1297013 has 2 divisors, whose sum is σ = 1297014. Its totient is φ = 1297012.

The previous prime is 1297003. The next prime is 1297019. The reversal of 1297013 is 3107921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1249924 + 47089 = 1118^2 + 217^2 .

It is a cyclic number.

It is not a de Polignac number, because 1297013 - 2⁶ = 1296949 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1297013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1297019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648506 + 648507.

It is an arithmetic number, because the mean of its divisors is an integer number (648507).

2^1297013 is an apocalyptic number.

It is an amenable number.

1297013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297013 is an equidigital number, since it uses as much as digits as its factorization.

1297013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1297013 is about 1138.8647856528. The cubic root of 1297013 is about 109.0556347022.

The spelling of 1297013 in words is "one million, two hundred ninety-seven thousand, thirteen".