442321141 has 2 divisors, whose sum is σ = 442321142. Its totient is φ = 442321140.

The previous prime is 442321127. The next prime is 442321151. The reversal of 442321141 is 141123244.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271260900 + 171060241 = 16470^2 + 13079^2 .

It is a cyclic number.

It is not a de Polignac number, because 442321141 - 2⁵ = 442321109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442321151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221160570 + 221160571.

It is an arithmetic number, because the mean of its divisors is an integer number (221160571).

Almost surely, 2^442321141 is an apocalyptic number.

It is an amenable number.

442321141 is a deficient number, since it is larger than the sum of its proper divisors (1).

442321141 is an equidigital number, since it uses as much as digits as its factorization.

442321141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 22.

The square root of 442321141 is about 21031.4322146638. The cubic root of 442321141 is about 761.9256000502.

Adding to 442321141 its reverse (141123244), we get a palindrome (583444385).

The spelling of 442321141 in words is "four hundred forty-two million, three hundred twenty-one thousand, one hundred forty-one".