1223545233 has 16 divisors (see below), whose sum is σ = 1730393280. Its totient is φ = 766365696.

The previous prime is 1223545207. The next prime is 1223545273. The reversal of 1223545233 is 3325453221.

It is not a de Polignac number, because 1223545233 - 2¹⁰ = 1223544209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223545233.

It is not an unprimeable number, because it can be changed into a prime (1223545273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8638 + ... + 50216.

It is an arithmetic number, because the mean of its divisors is an integer number (108149580).

Almost surely, 2^1223545233 is an apocalyptic number.

It is an amenable number.

1223545233 is a deficient number, since it is larger than the sum of its proper divisors (506848047).

1223545233 is a wasteful number, since it uses less digits than its factorization.

1223545233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42176.

The product of its digits is 21600, while the sum is 30.

The square root of 1223545233 is about 34979.2114405113. The cubic root of 1223545233 is about 1069.5637529284.

Adding to 1223545233 its reverse (3325453221), we get a palindrome (4548998454).

The spelling of 1223545233 in words is "one billion, two hundred twenty-three million, five hundred forty-five thousand, two hundred thirty-three".