2143198 has 8 divisors (see below), whose sum is σ = 3223440. Its totient is φ = 1068720.

The previous prime is 2143177. The next prime is 2143199. The reversal of 2143198 is 8913412.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143199) 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, 343 + ... + 2098.

It is an arithmetic number, because the mean of its divisors is an integer number (402930).

2^2143198 is an apocalyptic number.

2143198 is a deficient number, since it is larger than the sum of its proper divisors (1080242).

2143198 is a wasteful number, since it uses less digits than its factorization.

2143198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882.

The product of its digits is 1728, while the sum is 28.

The square root of 2143198 is about 1463.9665296720. The cubic root of 2143198 is about 128.9300343710.

The spelling of 2143198 in words is "two million, one hundred forty-three thousand, one hundred ninety-eight".