222743 has 4 divisors (see below), whose sum is σ = 223728. Its totient is φ = 221760.

The previous prime is 222731. The next prime is 222773. The reversal of 222743 is 347222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 222743 - 2⁶ = 222679 is a prime.

It is a super-2 number, since 2×222743² = 99228888098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38 + ... + 668.

It is an arithmetic number, because the mean of its divisors is an integer number (55932).

2²²²⁷⁴³ is an apocalyptic number.

222743 is a deficient number, since it is larger than the sum of its proper divisors (985).

222743 is an equidigital number, since it uses as much as digits as its factorization.

222743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984.

The product of its digits is 672, while the sum is 20.

The square root of 222743 is about 471.9565657982. The cubic root of 222743 is about 60.6179653155.

Adding to 222743 its reverse (347222), we get a palindrome (569965).

The spelling of 222743 in words is "two hundred twenty-two thousand, seven hundred forty-three", and thus it is an iban number.