12108143 has 4 divisors (see below), whose sum is σ = 12634608. Its totient is φ = 11581680.

The previous prime is 12108137. The next prime is 12108169. The reversal of 12108143 is 34180121.

12108143 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 a cyclic number.

It is not a de Polignac number, because 12108143 - 2¹⁰ = 12107119 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 (12108113) 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, 263198 + ... + 263243.

It is an arithmetic number, because the mean of its divisors is an integer number (3158652).

Almost surely, 2^12108143 is an apocalyptic number.

12108143 is a deficient number, since it is larger than the sum of its proper divisors (526465).

12108143 is an equidigital number, since it uses as much as digits as its factorization.

12108143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526464.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 12108143 is about 3479.6757032804. The cubic root of 12108143 is about 229.6285308040.

Adding to 12108143 its reverse (34180121), we get a palindrome (46288264).

The spelling of 12108143 in words is "twelve million, one hundred eight thousand, one hundred forty-three".