206005198 has 16 divisors (see below), whose sum is σ = 354931200. Its totient is φ = 87843096.

The previous prime is 206005171. The next prime is 206005211. The reversal of 206005198 is 891500602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34186 + ... + 39757.

It is an arithmetic number, because the mean of its divisors is an integer number (22183200).

Almost surely, 2^206005198 is an apocalyptic number.

206005198 is a deficient number, since it is larger than the sum of its proper divisors (148926002).

206005198 is a wasteful number, since it uses less digits than its factorization.

206005198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74151.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 206005198 is about 14352.8811741754. The cubic root of 206005198 is about 590.5990258092.

The spelling of 206005198 in words is "two hundred six million, five thousand, one hundred ninety-eight".