1440002159 has 2 divisors, whose sum is σ = 1440002160. Its totient is φ = 1440002158.

The previous prime is 1440002129. The next prime is 1440002171. The reversal of 1440002159 is 9512000441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440002159 is a prime.

It is a super-2 number, since 2×1440002159² = 4147212435849322562, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440002129) 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, 720001079 + 720001080.

It is an arithmetic number, because the mean of its divisors is an integer number (720001080).

Almost surely, 2^1440002159 is an apocalyptic number.

1440002159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440002159 is an equidigital number, since it uses as much as digits as its factorization.

1440002159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1440002159 is about 37947.3603693327. The cubic root of 1440002159 is about 1129.2437990172.

The spelling of 1440002159 in words is "one billion, four hundred forty million, two thousand, one hundred fifty-nine".