12143198 has 8 divisors (see below), whose sum is σ = 18283320. Its totient is φ = 6048760.

The previous prime is 12143189. The next prime is 12143221. The reversal of 12143198 is 89134121.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12143198.

It is a congruent number.

It is an unprimeable number.

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, 10748 + ... + 11823.

It is an arithmetic number, because the mean of its divisors is an integer number (2285415).

Almost surely, 2^12143198 is an apocalyptic number.

12143198 is a deficient number, since it is larger than the sum of its proper divisors (6140122).

12143198 is a wasteful number, since it uses less digits than its factorization.

12143198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22842.

The product of its digits is 1728, while the sum is 29.

The square root of 12143198 is about 3484.7091700743. The cubic root of 12143198 is about 229.8499209957.

The spelling of 12143198 in words is "twelve million, one hundred forty-three thousand, one hundred ninety-eight".