422143 has 4 divisors (see below), whose sum is σ = 425320. Its totient is φ = 418968.

The previous prime is 422141. The next prime is 422183. The reversal of 422143 is 341224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422143 - 2¹ = 422141 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380 + ... + 1657.

It is an arithmetic number, because the mean of its divisors is an integer number (106330).

2⁴²²¹⁴³ is an apocalyptic number.

422143 is a deficient number, since it is larger than the sum of its proper divisors (3177).

422143 is a wasteful number, since it uses less digits than its factorization.

422143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176.

The product of its digits is 192, while the sum is 16.

The square root of 422143 is about 649.7253265804. The cubic root of 422143 is about 75.0158781197.

Adding to 422143 its reverse (341224), we get a palindrome (763367).

It can be divided in two parts, 4221 and 43, that multiplied together give a triangular number (181503 = T₆₀₂).

The spelling of 422143 in words is "four hundred twenty-two thousand, one hundred forty-three", and thus it is an iban number.