1268291 has 2 divisors, whose sum is σ = 1268292. Its totient is φ = 1268290.

The previous prime is 1268287. The next prime is 1268299. The reversal of 1268291 is 1928621.

It is a weak prime.

It is an emirp because it is prime and its reverse (1928621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1268291 - 2² = 1268287 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1268299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634145 + 634146.

It is an arithmetic number, because the mean of its divisors is an integer number (634146).

2^1268291 is an apocalyptic number.

1268291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268291 is an equidigital number, since it uses as much as digits as its factorization.

1268291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 29.

The square root of 1268291 is about 1126.1842655623. The cubic root of 1268291 is about 108.2446158608.

The spelling of 1268291 in words is "one million, two hundred sixty-eight thousand, two hundred ninety-one".