1444444159 has 2 divisors, whose sum is σ = 1444444160. Its totient is φ = 1444444158.

The previous prime is 1444444081. The next prime is 1444444171. The reversal of 1444444159 is 9514444441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1444444159 - 2⁷ = 1444444031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444445159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722222079 + 722222080.

It is an arithmetic number, because the mean of its divisors is an integer number (722222080).

Almost surely, 2^1444444159 is an apocalyptic number.

1444444159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444444159 is an equidigital number, since it uses as much as digits as its factorization.

1444444159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 40.

The square root of 1444444159 is about 38005.8437480343. The cubic root of 1444444159 is about 1130.4037398763.

The spelling of 1444444159 in words is "one billion, four hundred forty-four million, four hundred forty-four thousand, one hundred fifty-nine".