2144890823 has 2 divisors, whose sum is σ = 2144890824. Its totient is φ = 2144890822.

The previous prime is 2144890817. The next prime is 2144890841. The reversal of 2144890823 is 3280984412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2144890823 - 2⁸ = 2144890567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144890873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072445411 + 1072445412.

It is an arithmetic number, because the mean of its divisors is an integer number (1072445412).

Almost surely, 2^2144890823 is an apocalyptic number.

2144890823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144890823 is an equidigital number, since it uses as much as digits as its factorization.

2144890823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 2144890823 is about 46312.9660354420. The cubic root of 2144890823 is about 1289.6397092892.

The spelling of 2144890823 in words is "two billion, one hundred forty-four million, eight hundred ninety thousand, eight hundred twenty-three".