2144422391 has 2 divisors, whose sum is σ = 2144422392. Its totient is φ = 2144422390.

The previous prime is 2144422367. The next prime is 2144422463. The reversal of 2144422391 is 1932244412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2144422391 - 2¹⁸ = 2144160247 is a prime.

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 (2144422331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072211195 + 1072211196.

It is an arithmetic number, because the mean of its divisors is an integer number (1072211196).

Almost surely, 2^2144422391 is an apocalyptic number.

2144422391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144422391 is an equidigital number, since it uses as much as digits as its factorization.

2144422391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 2144422391 is about 46307.9085146371. The cubic root of 2144422391 is about 1289.5458191193.

The spelling of 2144422391 in words is "two billion, one hundred forty-four million, four hundred twenty-two thousand, three hundred ninety-one".