1444847549 has 2 divisors, whose sum is σ = 1444847550. Its totient is φ = 1444847548.

The previous prime is 1444847543. The next prime is 1444847617. The reversal of 1444847549 is 9457484441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 976125049 + 468722500 = 31243^2 + 21650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444847549 - 2¹² = 1444843453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1444847497 and 1444847506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444847543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722423774 + 722423775.

It is an arithmetic number, because the mean of its divisors is an integer number (722423775).

Almost surely, 2^1444847549 is an apocalyptic number.

It is an amenable number.

1444847549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444847549 is an equidigital number, since it uses as much as digits as its factorization.

1444847549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2580480, while the sum is 50.

The square root of 1444847549 is about 38011.1503246087. The cubic root of 1444847549 is about 1130.5089593870.

The spelling of 1444847549 in words is "one billion, four hundred forty-four million, eight hundred forty-seven thousand, five hundred forty-nine".