422247541 has 2 divisors, whose sum is σ = 422247542. Its totient is φ = 422247540.

The previous prime is 422247521. The next prime is 422247571. The reversal of 422247541 is 145742224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284091025 + 138156516 = 16855^2 + 11754^2 .

It is a cyclic number.

It is not a de Polignac number, because 422247541 - 2⁹ = 422247029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422247521) 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, 211123770 + 211123771.

It is an arithmetic number, because the mean of its divisors is an integer number (211123771).

Almost surely, 2^422247541 is an apocalyptic number.

It is an amenable number.

422247541 is a deficient number, since it is larger than the sum of its proper divisors (1).

422247541 is an equidigital number, since it uses as much as digits as its factorization.

422247541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 31.

The square root of 422247541 is about 20548.6627545444. The cubic root of 422247541 is about 750.2207000860.

Adding to 422247541 its reverse (145742224), we get a palindrome (567989765).

The spelling of 422247541 in words is "four hundred twenty-two million, two hundred forty-seven thousand, five hundred forty-one".