1144663439 has 2 divisors, whose sum is σ = 1144663440. Its totient is φ = 1144663438.

The previous prime is 1144663381. The next prime is 1144663463. The reversal of 1144663439 is 9343664411.

It is a strong prime.

It is an emirp because it is prime and its reverse (9343664411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1144663439 - 2²⁸ = 876227983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1144663396 and 1144663405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144663739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572331719 + 572331720.

It is an arithmetic number, because the mean of its divisors is an integer number (572331720).

Almost surely, 2^1144663439 is an apocalyptic number.

1144663439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144663439 is an equidigital number, since it uses as much as digits as its factorization.

1144663439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 41.

The square root of 1144663439 is about 33832.8751216919. The cubic root of 1144663439 is about 1046.0664430299.

The spelling of 1144663439 in words is "one billion, one hundred forty-four million, six hundred sixty-three thousand, four hundred thirty-nine".