12908199 has 4 divisors (see below), whose sum is σ = 17210936. Its totient is φ = 8605464.

The previous prime is 12908173. The next prime is 12908209. The reversal of 12908199 is 99180921.

It is a happy number.

12908199 is nontrivially palindromic in base 11.

12908199 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 is not a de Polignac number, because 12908199 - 2⁵ = 12908167 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 (12908099) 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, 2151364 + ... + 2151369.

It is an arithmetic number, because the mean of its divisors is an integer number (4302734).

Almost surely, 2^12908199 is an apocalyptic number.

12908199 is a deficient number, since it is larger than the sum of its proper divisors (4302737).

12908199 is an equidigital number, since it uses as much as digits as its factorization.

12908199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302736.

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 12908199 is about 3592.7982130924. The cubic root of 12908199 is about 234.5786867897.

The spelling of 12908199 in words is "twelve million, nine hundred eight thousand, one hundred ninety-nine".