1444224247 has 2 divisors, whose sum is σ = 1444224248. Its totient is φ = 1444224246.

The previous prime is 1444224233. The next prime is 1444224251. The reversal of 1444224247 is 7424224441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444224247 is a prime.

It is a super-3 number, since 3×1444224247³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444224347) 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, 722112123 + 722112124.

It is an arithmetic number, because the mean of its divisors is an integer number (722112124).

Almost surely, 2^1444224247 is an apocalyptic number.

1444224247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444224247 is an equidigital number, since it uses as much as digits as its factorization.

1444224247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57344, while the sum is 34.

The square root of 1444224247 is about 38002.9505038754. The cubic root of 1444224247 is about 1130.3463701810.

Adding to 1444224247 its reverse (7424224441), we get a palindrome (8868448688).

The spelling of 1444224247 in words is "one billion, four hundred forty-four million, two hundred twenty-four thousand, two hundred forty-seven".