2105198 has 8 divisors (see below), whose sum is σ = 3172392. Its totient is φ = 1047736.

The previous prime is 2105183. The next prime is 2105203. The reversal of 2105198 is 8915012.

It is a happy number.

2105198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1865 + ... + 2772.

It is an arithmetic number, because the mean of its divisors is an integer number (396549).

2^2105198 is an apocalyptic number.

2105198 is a deficient number, since it is larger than the sum of its proper divisors (1067194).

2105198 is a wasteful number, since it uses less digits than its factorization.

2105198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4866.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 2105198 is about 1450.9300465563. The cubic root of 2105198 is about 128.1634873867.

The spelling of 2105198 in words is "two million, one hundred five thousand, one hundred ninety-eight".