12728183 has 8 divisors (see below), whose sum is σ = 13738368. Its totient is φ = 11722464.

The previous prime is 12728179. The next prime is 12728203. The reversal of 12728183 is 38182721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12728183 - 2² = 12728179 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12728113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7085 + ... + 8697.

It is an arithmetic number, because the mean of its divisors is an integer number (1717296).

Almost surely, 2^12728183 is an apocalyptic number.

12728183 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12728183 is a deficient number, since it is larger than the sum of its proper divisors (1010185).

12728183 is a wasteful number, since it uses less digits than its factorization.

12728183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233.

The product of its digits is 5376, while the sum is 32.

The square root of 12728183 is about 3567.6579152155. The cubic root of 12728183 is about 233.4831104132.

The spelling of 12728183 in words is "twelve million, seven hundred twenty-eight thousand, one hundred eighty-three".