12810128 has 20 divisors (see below), whose sum is σ = 24879360. Its totient is φ = 6389664.

The previous prime is 12810121. The next prime is 12810143. The reversal of 12810128 is 82101821.

It is a happy number.

12810128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12810121) 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, 9053 + ... + 10371.

It is an arithmetic number, because the mean of its divisors is an integer number (1243968).

Almost surely, 2^12810128 is an apocalyptic number.

It is an amenable number.

12810128 is a deficient number, since it is larger than the sum of its proper divisors (12069232).

12810128 is a wasteful number, since it uses less digits than its factorization.

12810128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 12810128 is about 3579.1239151502. The cubic root of 12810128 is about 233.9830995659.

Adding to 12810128 its reverse (82101821), we get a palindrome (94911949).

The spelling of 12810128 in words is "twelve million, eight hundred ten thousand, one hundred twenty-eight".