2144956459 has 2 divisors, whose sum is σ = 2144956460. Its totient is φ = 2144956458.

The previous prime is 2144956439. The next prime is 2144956523. The reversal of 2144956459 is 9546594412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2144956459 - 2⁵ = 2144956427 is a prime.

It is a super-2 number, since 2×2144956459² = 9201676422011637362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2144956439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072478229 + 1072478230.

It is an arithmetic number, because the mean of its divisors is an integer number (1072478230).

Almost surely, 2^2144956459 is an apocalyptic number.

2144956459 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144956459 is an equidigital number, since it uses as much as digits as its factorization.

2144956459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 49.

The square root of 2144956459 is about 46313.6746436730. The cubic root of 2144956459 is about 1289.6528639492.

The spelling of 2144956459 in words is "two billion, one hundred forty-four million, nine hundred fifty-six thousand, four hundred fifty-nine".