12128196 has 12 divisors (see below), whose sum is σ = 28299152. Its totient is φ = 4042728.

The previous prime is 12128189. The next prime is 12128219. The reversal of 12128196 is 69182121.

It is a happy number.

12128196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505330 + ... + 505353.

Almost surely, 2^12128196 is an apocalyptic number.

It is an amenable number.

12128196 is an abundant number, since it is smaller than the sum of its proper divisors (16170956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12128196 is a wasteful number, since it uses less digits than its factorization.

12128196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010690 (or 1010688 counting only the distinct ones).

The product of its digits is 1728, while the sum is 30.

The square root of 12128196 is about 3482.5559579137. Note that the first 3 decimals coincide. The cubic root of 12128196 is about 229.7552279423.

The spelling of 12128196 in words is "twelve million, one hundred twenty-eight thousand, one hundred ninety-six".