1444772713 has 2 divisors, whose sum is σ = 1444772714. Its totient is φ = 1444772712.

The previous prime is 1444772683. The next prime is 1444772723. The reversal of 1444772713 is 3172774441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1304871129 + 139901584 = 36123^2 + 11828^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444772713 - 2⁹ = 1444772201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1444772723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722386356 + 722386357.

It is an arithmetic number, because the mean of its divisors is an integer number (722386357).

Almost surely, 2^1444772713 is an apocalyptic number.

It is an amenable number.

1444772713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444772713 is an equidigital number, since it uses as much as digits as its factorization.

1444772713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131712, while the sum is 40.

The square root of 1444772713 is about 38010.1659165019. The cubic root of 1444772713 is about 1130.4894407812.

The spelling of 1444772713 in words is "one billion, four hundred forty-four million, seven hundred seventy-two thousand, seven hundred thirteen".