1268213 has 2 divisors, whose sum is σ = 1268214. Its totient is φ = 1268212.

The previous prime is 1268207. The next prime is 1268221. The reversal of 1268213 is 3128621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1044484 + 223729 = 1022^2 + 473^2 .

It is a cyclic number.

It is not a de Polignac number, because 1268213 - 2⁸ = 1267957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1268233) 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, 634106 + 634107.

It is an arithmetic number, because the mean of its divisors is an integer number (634107).

2^1268213 is an apocalyptic number.

It is an amenable number.

1268213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268213 is an equidigital number, since it uses as much as digits as its factorization.

1268213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 23.

The square root of 1268213 is about 1126.1496348177. The cubic root of 1268213 is about 108.2423967977.

The spelling of 1268213 in words is "one million, two hundred sixty-eight thousand, two hundred thirteen".