2144223431437 has 2 divisors, whose sum is σ = 2144223431438. Its totient is φ = 2144223431436.

The previous prime is 2144223431323. The next prime is 2144223431443. The reversal of 2144223431437 is 7341343224412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1817672900521 + 326550530916 = 1348211^2 + 571446^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144223431437 - 2²⁷ = 2144089213709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2144223431437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144223431477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072111715718 + 1072111715719.

It is an arithmetic number, because the mean of its divisors is an integer number (1072111715719).

Almost surely, 2^{2144223431437} is an apocalyptic number.

It is an amenable number.

2144223431437 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144223431437 is an equidigital number, since it uses as much as digits as its factorization.

2144223431437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 40.

Adding to 2144223431437 its reverse (7341343224412), we get a palindrome (9485566655849).

The spelling of 2144223431437 in words is "two trillion, one hundred forty-four billion, two hundred twenty-three million, four hundred thirty-one thousand, four hundred thirty-seven".