442235414197 has 2 divisors, whose sum is σ = 442235414198. Its totient is φ = 442235414196.

The previous prime is 442235414191. The next prime is 442235414293. The reversal of 442235414197 is 791414532244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442226330001 + 9084196 = 665001^2 + 3014^2 .

It is a cyclic number.

It is not a de Polignac number, because 442235414197 - 2¹⁹ = 442234889909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442235414191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221117707098 + 221117707099.

It is an arithmetic number, because the mean of its divisors is an integer number (221117707099).

Almost surely, 2^442235414197 is an apocalyptic number.

It is an amenable number.

442235414197 is a deficient number, since it is larger than the sum of its proper divisors (1).

442235414197 is an equidigital number, since it uses as much as digits as its factorization.

442235414197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 46.

The spelling of 442235414197 in words is "four hundred forty-two billion, two hundred thirty-five million, four hundred fourteen thousand, one hundred ninety-seven".