444441133 has 2 divisors, whose sum is σ = 444441134. Its totient is φ = 444441132.

The previous prime is 444441113. The next prime is 444441161. The reversal of 444441133 is 331144444.

It is a happy number.

It is an a-pointer prime, because the next prime (444441161) can be obtained adding 444441133 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442807849 + 1633284 = 21043^2 + 1278^2 .

It is a cyclic number.

It is not a de Polignac number, because 444441133 - 2⁹ = 444440621 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444441113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222220566 + 222220567.

It is an arithmetic number, because the mean of its divisors is an integer number (222220567).

Almost surely, 2^444441133 is an apocalyptic number.

It is an amenable number.

444441133 is a deficient number, since it is larger than the sum of its proper divisors (1).

444441133 is an equidigital number, since it uses as much as digits as its factorization.

444441133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 28.

The square root of 444441133 is about 21081.7725298420. The cubic root of 444441133 is about 763.1409330354.

Adding to 444441133 its reverse (331144444), we get a palindrome (775585577).

It can be divided in two parts, 4444411 and 33, that added together give a palindrome (4444444).

The spelling of 444441133 in words is "four hundred forty-four million, four hundred forty-one thousand, one hundred thirty-three".