1444401461 has 2 divisors, whose sum is σ = 1444401462. Its totient is φ = 1444401460.

The previous prime is 1444401457. The next prime is 1444401557. The reversal of 1444401461 is 1641044441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1350195025 + 94206436 = 36745^2 + 9706^2 .

It is an emirp because it is prime and its reverse (1641044441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1444401461 - 2² = 1444401457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444401061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722200730 + 722200731.

It is an arithmetic number, because the mean of its divisors is an integer number (722200731).

Almost surely, 2^1444401461 is an apocalyptic number.

It is an amenable number.

1444401461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444401461 is an equidigital number, since it uses as much as digits as its factorization.

1444401461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 1444401461 is about 38005.2820144779. The cubic root of 1444401461 is about 1130.3926014615.

The spelling of 1444401461 in words is "one billion, four hundred forty-four million, four hundred one thousand, four hundred sixty-one".