1444909 has 2 divisors, whose sum is σ = 1444910. Its totient is φ = 1444908.

The previous prime is 1444903. The next prime is 1444913. The reversal of 1444909 is 9094441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1432809 + 12100 = 1197^2 + 110^2 .

It is an emirp because it is prime and its reverse (9094441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1444909 - 2³ = 1444901 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722454 + 722455.

It is an arithmetic number, because the mean of its divisors is an integer number (722455).

2^1444909 is an apocalyptic number.

It is an amenable number.

1444909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444909 is an equidigital number, since it uses as much as digits as its factorization.

1444909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1444909 is about 1202.0436764111. The cubic root of 1444909 is about 113.0524986435.

The spelling of 1444909 in words is "one million, four hundred forty-four thousand, nine hundred nine".