1269239 has 2 divisors, whose sum is σ = 1269240. Its totient is φ = 1269238.

The previous prime is 1269223. The next prime is 1269241. The reversal of 1269239 is 9329621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1269239 - 2⁴ = 1269223 is a prime.

It is a super-2 number, since 2×1269239² = 3221935278242, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1269241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1269299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634619 + 634620.

It is an arithmetic number, because the mean of its divisors is an integer number (634620).

2^1269239 is an apocalyptic number.

1269239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1269239 is an equidigital number, since it uses as much as digits as its factorization.

1269239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 32.

The square root of 1269239 is about 1126.6050772121. The cubic root of 1269239 is about 108.2715787422.

The spelling of 1269239 in words is "one million, two hundred sixty-nine thousand, two hundred thirty-nine".