12823133 has 4 divisors (see below), whose sum is σ = 13265340. Its totient is φ = 12380928.

The previous prime is 12823123. The next prime is 12823141. The reversal of 12823133 is 33132821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33132821 = 61 ⋅543161.

It can be written as a sum of positive squares in 2 ways, for example, as 7991929 + 4831204 = 2827^2 + 2198^2 .

It is a cyclic number.

It is not a de Polignac number, because 12823133 - 2⁸ = 12822877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12823099 and 12823108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12823123) 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, 221060 + ... + 221117.

It is an arithmetic number, because the mean of its divisors is an integer number (3316335).

Almost surely, 2^12823133 is an apocalyptic number.

It is an amenable number.

12823133 is a deficient number, since it is larger than the sum of its proper divisors (442207).

12823133 is an equidigital number, since it uses as much as digits as its factorization.

12823133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442206.

The product of its digits is 864, while the sum is 23.

The square root of 12823133 is about 3580.9402396577. The cubic root of 12823133 is about 234.0622536291.

Adding to 12823133 its reverse (33132821), we get a palindrome (45955954).

The spelling of 12823133 in words is "twelve million, eight hundred twenty-three thousand, one hundred thirty-three".