1268039 has 2 divisors, whose sum is σ = 1268040. Its totient is φ = 1268038.

The previous prime is 1268017. The next prime is 1268051. The reversal of 1268039 is 9308621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1268039 - 2¹² = 1263943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1258039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634019 + 634020.

It is an arithmetic number, because the mean of its divisors is an integer number (634020).

2^1268039 is an apocalyptic number.

1268039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268039 is an equidigital number, since it uses as much as digits as its factorization.

1268039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1268039 is about 1126.0723777804. The cubic root of 1268039 is about 108.2374462522.

The spelling of 1268039 in words is "one million, two hundred sixty-eight thousand, thirty-nine".