422945543 has 2 divisors, whose sum is σ = 422945544. Its totient is φ = 422945542.

The previous prime is 422945531. The next prime is 422945563. The reversal of 422945543 is 345549224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422945543 - 2⁸ = 422945287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422945497 and 422945506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422945503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211472771 + 211472772.

It is an arithmetic number, because the mean of its divisors is an integer number (211472772).

Almost surely, 2^422945543 is an apocalyptic number.

422945543 is a deficient number, since it is larger than the sum of its proper divisors (1).

422945543 is an equidigital number, since it uses as much as digits as its factorization.

422945543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 38.

The square root of 422945543 is about 20565.6398636172. The cubic root of 422945543 is about 750.6338599963.

The spelling of 422945543 in words is "four hundred twenty-two million, nine hundred forty-five thousand, five hundred forty-three".