1223373 has 4 divisors (see below), whose sum is σ = 1631168. Its totient is φ = 815580.

The previous prime is 1223357. The next prime is 1223381. The reversal of 1223373 is 3733221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1223373 - 2⁴ = 1223357 is a prime.

It is a d-powerful number, because it can be written as 1 + 2¹⁷ + 2¹⁹ + 3⁴ + 3⁹ + 7⁵ + 3¹² .

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223323) 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, 203893 + ... + 203898.

It is an arithmetic number, because the mean of its divisors is an integer number (407792).

2^1223373 is an apocalyptic number.

It is an amenable number.

1223373 is a deficient number, since it is larger than the sum of its proper divisors (407795).

1223373 is an equidigital number, since it uses as much as digits as its factorization.

1223373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407794.

The product of its digits is 756, while the sum is 21.

The square root of 1223373 is about 1106.0619331665. The cubic root of 1223373 is about 106.9513564669.

Adding to 1223373 its reverse (3733221), we get a palindrome (4956594).

It can be divided in two parts, 1223 and 373, that added together give a triangular number (1596 = T₅₆).

The spelling of 1223373 in words is "one million, two hundred twenty-three thousand, three hundred seventy-three".