222543 has 12 divisors (see below), whose sum is σ = 326560. Its totient is φ = 146016.

The previous prime is 222533. The next prime is 222553. The reversal of 222543 is 345222.

It is an interprime number because it is at equal distance from previous prime (222533) and next prime (222553).

It is not a de Polignac number, because 222543 - 2⁴ = 222527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222533) 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 in 11 ways as a sum of consecutive naturals, for example, 555 + ... + 867.

2²²²⁵⁴³ is an apocalyptic number.

222543 is a deficient number, since it is larger than the sum of its proper divisors (104017).

222543 is a wasteful number, since it uses less digits than its factorization.

222543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 395 counting only the distinct ones).

The product of its digits is 480, while the sum is 18.

The square root of 222543 is about 471.7446343097. The cubic root of 222543 is about 60.5998170109.

Adding to 222543 its reverse (345222), we get a palindrome (567765).

The spelling of 222543 in words is "two hundred twenty-two thousand, five hundred forty-three".