200109198 has 8 divisors (see below), whose sum is σ = 400218408. Its totient is φ = 66703064.

The previous prime is 200109167. The next prime is 200109199. The reversal of 200109198 is 891901002.

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

200109198 is an admirable number.

It is a super-2 number, since 2×200109198² = 80087382248406408, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200109199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16675761 + ... + 16675772.

It is an arithmetic number, because the mean of its divisors is an integer number (50027301).

Almost surely, 2^200109198 is an apocalyptic number.

200109198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200109198 is a wasteful number, since it uses less digits than its factorization.

200109198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33351538.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 200109198 is about 14145.9958292091. The cubic root of 200109198 is about 584.9099605744.

The spelling of 200109198 in words is "two hundred million, one hundred nine thousand, one hundred ninety-eight".