442122133 has 2 divisors, whose sum is σ = 442122134. Its totient is φ = 442122132.

The previous prime is 442122113. The next prime is 442122151. The reversal of 442122133 is 331221244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288932004 + 153190129 = 16998^2 + 12377^2 .

It is a cyclic number.

It is not a de Polignac number, because 442122133 - 2⁵ = 442122101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442122103) 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, 221061066 + 221061067.

It is an arithmetic number, because the mean of its divisors is an integer number (221061067).

Almost surely, 2^442122133 is an apocalyptic number.

It is an amenable number.

442122133 is a deficient number, since it is larger than the sum of its proper divisors (1).

442122133 is an equidigital number, since it uses as much as digits as its factorization.

442122133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 22.

The square root of 442122133 is about 21026.7004782015. The cubic root of 442122133 is about 761.8113150344.

Adding to 442122133 its reverse (331221244), we get a palindrome (773343377).

The spelling of 442122133 in words is "four hundred forty-two million, one hundred twenty-two thousand, one hundred thirty-three".