222243543 has 6 divisors (see below), whose sum is σ = 321018464. Its totient is φ = 148162356.

The previous prime is 222243473. The next prime is 222243563. The reversal of 222243543 is 345342222.

It is a happy number.

222243543 is a `hidden beast` number, since 2 + 222 + 435 + 4 + 3 = 666.

It is not a de Polignac number, because 222243543 - 2⁹ = 222243031 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 (222243563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12346855 + ... + 12346872.

Almost surely, 2^222243543 is an apocalyptic number.

222243543 is a deficient number, since it is larger than the sum of its proper divisors (98774921).

222243543 is a wasteful number, since it uses less digits than its factorization.

222243543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24693733 (or 24693730 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 222243543 is about 14907.8349534733. The cubic root of 222243543 is about 605.7262348701.

Adding to 222243543 its reverse (345342222), we get a palindrome (567585765).

The spelling of 222243543 in words is "two hundred twenty-two million, two hundred forty-three thousand, five hundred forty-three".