1143424439 has 2 divisors, whose sum is σ = 1143424440. Its totient is φ = 1143424438.

The previous prime is 1143424417. The next prime is 1143424463. The reversal of 1143424439 is 9344243411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143424439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143424399 and 1143424408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143424409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571712219 + 571712220.

It is an arithmetic number, because the mean of its divisors is an integer number (571712220).

Almost surely, 2^1143424439 is an apocalyptic number.

1143424439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143424439 is an equidigital number, since it uses as much as digits as its factorization.

1143424439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 1143424439 is about 33814.5595712853. The cubic root of 1143424439 is about 1045.6888810350.

The spelling of 1143424439 in words is "one billion, one hundred forty-three million, four hundred twenty-four thousand, four hundred thirty-nine".