442003141 has 2 divisors, whose sum is σ = 442003142. Its totient is φ = 442003140.

The previous prime is 442003127. The next prime is 442003153. The reversal of 442003141 is 141300244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 373610241 + 68392900 = 19329^2 + 8270^2 .

It is a cyclic number.

It is not a de Polignac number, because 442003141 - 2⁵ = 442003109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442003241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221001570 + 221001571.

It is an arithmetic number, because the mean of its divisors is an integer number (221001571).

Almost surely, 2^442003141 is an apocalyptic number.

It is an amenable number.

442003141 is a deficient number, since it is larger than the sum of its proper divisors (1).

442003141 is an equidigital number, since it uses as much as digits as its factorization.

442003141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 442003141 is about 21023.8707425631. The cubic root of 442003141 is about 761.7429647010.

Adding to 442003141 its reverse (141300244), we get a palindrome (583303385).

The spelling of 442003141 in words is "four hundred forty-two million, three thousand, one hundred forty-one".