12128833 has 4 divisors (see below), whose sum is σ = 12165808. Its totient is φ = 12091860.

The previous prime is 12128827. The next prime is 12128869. The reversal of 12128833 is 33882121.

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 a cyclic number.

It is not a de Polignac number, because 12128833 - 2⁵ = 12128801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17991 + ... + 18652.

It is an arithmetic number, because the mean of its divisors is an integer number (3041452).

Almost surely, 2^12128833 is an apocalyptic number.

It is an amenable number.

12128833 is a deficient number, since it is larger than the sum of its proper divisors (36975).

12128833 is an equidigital number, since it uses as much as digits as its factorization.

12128833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36974.

The product of its digits is 2304, while the sum is 28.

The square root of 12128833 is about 3482.6474125297. The cubic root of 12128833 is about 229.7592502915.

The spelling of 12128833 in words is "twelve million, one hundred twenty-eight thousand, eight hundred thirty-three".