200001819 has 8 divisors (see below), whose sum is σ = 266738752. Its totient is φ = 133299720.

The previous prime is 200001797. The next prime is 200001827. The reversal of 200001819 is 918100002.

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

It is not a de Polignac number, because 200001819 - 2⁷ = 200001691 is a prime.

It is a super-2 number, since 2×200001819² = 80001455206617522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200001795 and 200001804.

It is not an unprimeable number, because it can be changed into a prime (200001839) 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 7 ways as a sum of consecutive naturals, for example, 11184 + ... + 22914.

It is an arithmetic number, because the mean of its divisors is an integer number (33342344).

Almost surely, 2^200001819 is an apocalyptic number.

200001819 is a deficient number, since it is larger than the sum of its proper divisors (66736933).

200001819 is a wasteful number, since it uses less digits than its factorization.

200001819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17417.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 200001819 is about 14142.1999349465. The cubic root of 200001819 is about 584.8053205666.

The spelling of 200001819 in words is "two hundred million, one thousand, eight hundred nineteen".