1144439 has 2 divisors, whose sum is σ = 1144440. Its totient is φ = 1144438.

The previous prime is 1144417. The next prime is 1144441. The reversal of 1144439 is 9344411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1144439 - 2⁸ = 1144183 is a prime.

It is a Sophie Germain prime.

Together with 1144441, 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 (1144499) 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, 572219 + 572220.

It is an arithmetic number, because the mean of its divisors is an integer number (572220).

2^1144439 is an apocalyptic number.

1144439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144439 is an equidigital number, since it uses as much as digits as its factorization.

1144439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 1144439 is about 1069.7845577498. The cubic root of 1144439 is about 104.5998069671.

The spelling of 1144439 in words is "one million, one hundred forty-four thousand, four hundred thirty-nine".