1123224209 has 8 divisors (see below), whose sum is σ = 1175342592. Its totient is φ = 1072098720.

The previous prime is 1123224173. The next prime is 1123224253. The reversal of 1123224209 is 9024223211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123224209 - 2²⁰ = 1122175633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123284209) 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 7 ways as a sum of consecutive naturals, for example, 245909 + ... + 250434.

It is an arithmetic number, because the mean of its divisors is an integer number (146917824).

Almost surely, 2^1123224209 is an apocalyptic number.

It is an amenable number.

1123224209 is a deficient number, since it is larger than the sum of its proper divisors (52118383).

1123224209 is an equidigital number, since it uses as much as digits as its factorization.

1123224209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496447.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1123224209 is about 33514.5372786199. The cubic root of 1123224209 is about 1039.4943945828.

The spelling of 1123224209 in words is "one billion, one hundred twenty-three million, two hundred twenty-four thousand, two hundred nine".