422543453 has 2 divisors, whose sum is σ = 422543454. Its totient is φ = 422543452.

The previous prime is 422543411. The next prime is 422543467. The reversal of 422543453 is 354345224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381108484 + 41434969 = 19522^2 + 6437^2 .

It is a cyclic number.

It is not a de Polignac number, because 422543453 - 2¹² = 422539357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422543153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211271726 + 211271727.

It is an arithmetic number, because the mean of its divisors is an integer number (211271727).

Almost surely, 2^422543453 is an apocalyptic number.

It is an amenable number.

422543453 is a deficient number, since it is larger than the sum of its proper divisors (1).

422543453 is an equidigital number, since it uses as much as digits as its factorization.

422543453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 32.

The square root of 422543453 is about 20555.8617673889. The cubic root of 422543453 is about 750.3959112652.

Adding to 422543453 its reverse (354345224), we get a palindrome (776888677).

The spelling of 422543453 in words is "four hundred twenty-two million, five hundred forty-three thousand, four hundred fifty-three".