1297213 has 4 divisors (see below), whose sum is σ = 1304640. Its totient is φ = 1289788.

The previous prime is 1297211. The next prime is 1297217. The reversal of 1297213 is 3127921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1297213 - 2¹ = 1297211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297211) 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 in 3 ways as a sum of consecutive naturals, for example, 3445 + ... + 3802.

It is an arithmetic number, because the mean of its divisors is an integer number (326160).

2^1297213 is an apocalyptic number.

It is an amenable number.

1297213 is a deficient number, since it is larger than the sum of its proper divisors (7427).

1297213 is an equidigital number, since it uses as much as digits as its factorization.

1297213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7426.

The product of its digits is 756, while the sum is 25.

The square root of 1297213 is about 1138.9525890045. The cubic root of 1297213 is about 109.0612398904.

The spelling of 1297213 in words is "one million, two hundred ninety-seven thousand, two hundred thirteen".