422054309 has 2 divisors, whose sum is σ = 422054310. Its totient is φ = 422054308.

The previous prime is 422054293. The next prime is 422054323. The reversal of 422054309 is 903450224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411197284 + 10857025 = 20278^2 + 3295^2 .

It is a cyclic number.

It is not a de Polignac number, because 422054309 - 2⁴ = 422054293 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 (422054389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211027154 + 211027155.

It is an arithmetic number, because the mean of its divisors is an integer number (211027155).

Almost surely, 2^422054309 is an apocalyptic number.

It is an amenable number.

422054309 is a deficient number, since it is larger than the sum of its proper divisors (1).

422054309 is an equidigital number, since it uses as much as digits as its factorization.

422054309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 422054309 is about 20543.9604020257. The cubic root of 422054309 is about 750.1062421346.

The spelling of 422054309 in words is "four hundred twenty-two million, fifty-four thousand, three hundred nine".