1044139 has 2 divisors, whose sum is σ = 1044140. Its totient is φ = 1044138.

The previous prime is 1044133. The next prime is 1044149. The reversal of 1044139 is 9314401.

It is a weak prime.

It is an emirp because it is prime and its reverse (9314401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1044139 - 2¹¹ = 1042091 is a prime.

It is equal to p₈₁₇₀₆ and since 1044139 and 81706 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1044133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522069 + 522070.

It is an arithmetic number, because the mean of its divisors is an integer number (522070).

2^1044139 is an apocalyptic number.

1044139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044139 is an equidigital number, since it uses as much as digits as its factorization.

1044139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1044139 is about 1021.8311993671. The cubic root of 1044139 is about 101.4501684582.

The spelling of 1044139 in words is "one million, forty-four thousand, one hundred thirty-nine".