1268369 has 2 divisors, whose sum is σ = 1268370. Its totient is φ = 1268368.

The previous prime is 1268359. The next prime is 1268413. The reversal of 1268369 is 9638621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1030225 + 238144 = 1015^2 + 488^2 .

It is an emirp because it is prime and its reverse (9638621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1268369 is a prime.

It is a super-2 number, since 2×1268369² = 3217519840322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1268359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634184 + 634185.

It is an arithmetic number, because the mean of its divisors is an integer number (634185).

2^1268369 is an apocalyptic number.

It is an amenable number.

1268369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268369 is an equidigital number, since it uses as much as digits as its factorization.

1268369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 1268369 is about 1126.2188952420. The cubic root of 1268369 is about 108.2468348329.

The spelling of 1268369 in words is "one million, two hundred sixty-eight thousand, three hundred sixty-nine".