1223223 has 4 divisors (see below), whose sum is σ = 1630968. Its totient is φ = 815480.

The previous prime is 1223207. The next prime is 1223231. The reversal of 1223223 is 3223221.

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 1223223 - 2⁴ = 1223207 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 (1223203) 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, 203868 + ... + 203873.

It is an arithmetic number, because the mean of its divisors is an integer number (407742).

2^1223223 is an apocalyptic number.

1223223 is a deficient number, since it is larger than the sum of its proper divisors (407745).

1223223 is an equidigital number, since it uses as much as digits as its factorization.

1223223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407744.

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

The square root of 1223223 is about 1105.9941229500. The cubic root of 1223223 is about 106.9469851211.

Adding to 1223223 its reverse (3223221), we get a palindrome (4446444).

The spelling of 1223223 in words is "one million, two hundred twenty-three thousand, two hundred twenty-three".