144444444449 has 2 divisors, whose sum is σ = 144444444450. Its totient is φ = 144444444448.

The previous prime is 144444444407. The next prime is 144444444499. The reversal of 144444444449 is 944444444441.

It is an a-pointer prime, because the next prime (144444444499) can be obtained adding 144444444449 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102507548224 + 41936896225 = 320168^2 + 204785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144444444449 is a prime.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 144444444397 and 144444444406.

It is not a weakly prime, because it can be changed into another prime (144444444499) 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, 72222222224 + 72222222225.

It is an arithmetic number, because the mean of its divisors is an integer number (72222222225).

Almost surely, 2^144444444449 is an apocalyptic number.

It is an amenable number.

144444444449 is a deficient number, since it is larger than the sum of its proper divisors (1).

144444444449 is an equidigital number, since it uses as much as digits as its factorization.

144444444449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9437184, while the sum is 50.

The spelling of 144444444449 in words is "one hundred forty-four billion, four hundred forty-four million, four hundred forty-four thousand, four hundred forty-nine".