220603 has 4 divisors (see below), whose sum is σ = 228240. Its totient is φ = 212968.

The previous prime is 220589. The next prime is 220613. The reversal of 220603 is 306022.

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 220603 - 2¹³ = 212411 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3775 + ... + 3832.

It is an arithmetic number, because the mean of its divisors is an integer number (57060).

2²²⁰⁶⁰³ is an apocalyptic number.

220603 is a deficient number, since it is larger than the sum of its proper divisors (7637).

220603 is an equidigital number, since it uses as much as digits as its factorization.

220603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7636.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 220603 is about 469.6839362806. The cubic root of 220603 is about 60.4232115515.

Adding to 220603 its reverse (306022), we get a palindrome (526625).

The spelling of 220603 in words is "two hundred twenty thousand, six hundred three".