1444715609 has 2 divisors, whose sum is σ = 1444715610. Its totient is φ = 1444715608.

The previous prime is 1444715593. The next prime is 1444715611. The reversal of 1444715609 is 9065174441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 842160400 + 602555209 = 29020^2 + 24547^2 .

It is an emirp because it is prime and its reverse (9065174441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1444715609 - 2⁴ = 1444715593 is a prime.

Together with 1444715611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1444715639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722357804 + 722357805.

It is an arithmetic number, because the mean of its divisors is an integer number (722357805).

Almost surely, 2^1444715609 is an apocalyptic number.

It is an amenable number.

1444715609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444715609 is an equidigital number, since it uses as much as digits as its factorization.

1444715609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 1444715609 is about 38009.4147416137. The cubic root of 1444715609 is about 1130.4745465539.

The spelling of 1444715609 in words is "one billion, four hundred forty-four million, seven hundred fifteen thousand, six hundred nine".