422543143 has 24 divisors (see below), whose sum is σ = 511044480. Its totient is φ = 345755520.

The previous prime is 422543141. The next prime is 422543153. The reversal of 422543143 is 341345224.

It is a happy number.

It is not a de Polignac number, because 422543143 - 2¹ = 422543141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422543141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70228 + ... + 76006.

It is an arithmetic number, because the mean of its divisors is an integer number (21293520).

Almost surely, 2^422543143 is an apocalyptic number.

422543143 is a deficient number, since it is larger than the sum of its proper divisors (88501337).

422543143 is a wasteful number, since it uses less digits than its factorization.

422543143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5847 (or 5830 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 422543143 is about 20555.8542269593. The cubic root of 422543143 is about 750.3957277553.

Adding to 422543143 its reverse (341345224), we get a palindrome (763888367).

The spelling of 422543143 in words is "four hundred twenty-two million, five hundred forty-three thousand, one hundred forty-three".