12648233 has 4 divisors (see below), whose sum is σ = 13621188. Its totient is φ = 11675280.

The previous prime is 12648173. The next prime is 12648239. The reversal of 12648233 is 33284621.

12648233 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6512704 + 6135529 = 2552^2 + 2477^2 .

It is a cyclic number.

It is not a de Polignac number, because 12648233 - 2⁶ = 12648169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12648196 and 12648205.

It is not an unprimeable number, because it can be changed into a prime (12648239) 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, 486458 + ... + 486483.

It is an arithmetic number, because the mean of its divisors is an integer number (3405297).

Almost surely, 2^12648233 is an apocalyptic number.

12648233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12648233 is a deficient number, since it is larger than the sum of its proper divisors (972955).

12648233 is an equidigital number, since it uses as much as digits as its factorization.

12648233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972954.

The product of its digits is 6912, while the sum is 29.

The square root of 12648233 is about 3556.4354345327. The cubic root of 12648233 is about 232.9932212657.

The spelling of 12648233 in words is "twelve million, six hundred forty-eight thousand, two hundred thirty-three".