211030198 has 16 divisors (see below), whose sum is σ = 338367456. Its totient is φ = 98464960.

The previous prime is 211030189. The next prime is 211030219. The reversal of 211030198 is 891030112.

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 7 ways as a sum of consecutive naturals, for example, 54061 + ... + 57832.

It is an arithmetic number, because the mean of its divisors is an integer number (21147966).

Almost surely, 2^211030198 is an apocalyptic number.

211030198 is a deficient number, since it is larger than the sum of its proper divisors (127337258).

211030198 is a wasteful number, since it uses less digits than its factorization.

211030198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111959.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 211030198 is about 14526.8784671725. The cubic root of 211030198 is about 595.3625810675.

The spelling of 211030198 in words is "two hundred eleven million, thirty thousand, one hundred ninety-eight".