1444544243 has 2 divisors, whose sum is σ = 1444544244. Its totient is φ = 1444544242.

The previous prime is 1444544239. The next prime is 1444544263. The reversal of 1444544243 is 3424454441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1444544243 - 2² = 1444544239 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1444544263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722272121 + 722272122.

It is an arithmetic number, because the mean of its divisors is an integer number (722272122).

Almost surely, 2^1444544243 is an apocalyptic number.

1444544243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444544243 is an equidigital number, since it uses as much as digits as its factorization.

1444544243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122880, while the sum is 35.

The square root of 1444544243 is about 38007.1604174792. The cubic root of 1444544243 is about 1130.4298474311.

Adding to 1444544243 its reverse (3424454441), we get a palindrome (4868998684).

The spelling of 1444544243 in words is "one billion, four hundred forty-four million, five hundred forty-four thousand, two hundred forty-three".