220263 has 4 divisors (see below), whose sum is σ = 293688. Its totient is φ = 146840.

The previous prime is 220243. The next prime is 220279. The reversal of 220263 is 362022.

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 220263 - 2¹⁶ = 154727 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220243) 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 3 ways as a sum of consecutive naturals, for example, 36708 + ... + 36713.

It is an arithmetic number, because the mean of its divisors is an integer number (73422).

2²²⁰²⁶³ is an apocalyptic number.

220263 is a deficient number, since it is larger than the sum of its proper divisors (73425).

220263 is an equidigital number, since it uses as much as digits as its factorization.

220263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73424.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 220263 is about 469.3218511853. The cubic root of 220263 is about 60.3921535646.

Adding to 220263 its reverse (362022), we get a palindrome (582285).

The spelling of 220263 in words is "two hundred twenty thousand, two hundred sixty-three".