444042133 has 2 divisors, whose sum is σ = 444042134. Its totient is φ = 444042132.

The previous prime is 444042107. The next prime is 444042139. The reversal of 444042133 is 331240444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 440286289 + 3755844 = 20983^2 + 1938^2 .

It is a cyclic number.

It is not a de Polignac number, because 444042133 - 2⁹ = 444041621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444042098 and 444042107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444042139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222021066 + 222021067.

It is an arithmetic number, because the mean of its divisors is an integer number (222021067).

Almost surely, 2^444042133 is an apocalyptic number.

It is an amenable number.

444042133 is a deficient number, since it is larger than the sum of its proper divisors (1).

444042133 is an equidigital number, since it uses as much as digits as its factorization.

444042133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 444042133 is about 21072.3072538344. The cubic root of 444042133 is about 762.9124930348.

Adding to 444042133 its reverse (331240444), we get a palindrome (775282577).

The spelling of 444042133 in words is "four hundred forty-four million, forty-two thousand, one hundred thirty-three".