1224173 has 4 divisors (see below), whose sum is σ = 1233120. Its totient is φ = 1215228.

The previous prime is 1224169. The next prime is 1224193. The reversal of 1224173 is 3714221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3714221 = 7 ⋅530603.

It is a cyclic number.

It is not a de Polignac number, because 1224173 - 2² = 1224169 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224133) 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, 4265 + ... + 4542.

It is an arithmetic number, because the mean of its divisors is an integer number (308280).

2^1224173 is an apocalyptic number.

It is an amenable number.

1224173 is a deficient number, since it is larger than the sum of its proper divisors (8947).

1224173 is an equidigital number, since it uses as much as digits as its factorization.

1224173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8946.

The product of its digits is 336, while the sum is 20.

The square root of 1224173 is about 1106.4235174652. The cubic root of 1224173 is about 106.9746642783.

Adding to 1224173 its reverse (3714221), we get a palindrome (4938394).

The spelling of 1224173 in words is "one million, two hundred twenty-four thousand, one hundred seventy-three".