1044140239 has 2 divisors, whose sum is σ = 1044140240. Its totient is φ = 1044140238.

The previous prime is 1044140213. The next prime is 1044140267. The reversal of 1044140239 is 9320414401.

It is an a-pointer prime, because the next prime (1044140267) can be obtained adding 1044140239 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1044140239 - 2⁹ = 1044139727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1044140639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522070119 + 522070120.

It is an arithmetic number, because the mean of its divisors is an integer number (522070120).

Almost surely, 2^1044140239 is an apocalyptic number.

1044140239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044140239 is an equidigital number, since it uses as much as digits as its factorization.

1044140239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1044140239 is about 32313.1589139781. The cubic root of 1044140239 is about 1014.5020858588.

The spelling of 1044140239 in words is "one billion, forty-four million, one hundred forty thousand, two hundred thirty-nine".