220243 has 2 divisors, whose sum is σ = 220244.
Its totient is φ = 220242.
The previous prime is 220217. The next prime is 220279. The reversal of 220243 is 342022.
220243 is nontrivially palindromic in base 16.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 220243 - 29 = 219731 is a prime.
It is not a weakly prime, because it can be changed into another prime (220543) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110121 + 110122.
It is an arithmetic number, because the mean of its divisors is an integer number (110122).
2220243 is an apocalyptic number.
220243 is a deficient number, since it is larger than the sum of its proper divisors (1).
220243 is an equidigital number, since it uses as much as digits as its factorization.
220243 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 96, while the sum is 13.
The square root of 220243 is about 469.3005433621.
The cubic root of 220243 is about 60.3903256292.
Adding to 220243 its reverse (342022), we get a palindrome (562265).
The spelling of 220243 in words is "two hundred twenty thousand, two hundred forty-three", and thus it is an iban number.