206342219 has 4 divisors (see below), whose sum is σ = 206537760. Its totient is φ = 206146680.

The previous prime is 206342207. The next prime is 206342239. The reversal of 206342219 is 912243602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206342219 - 2⁸ = 206341963 is a prime.

It is a super-2 number, since 2×206342219² = 85154222683687922, 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 = 206342191 and 206342200.

It is not an unprimeable number, because it can be changed into a prime (206342239) by changing a digit.

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, 96179 + ... + 98300.

It is an arithmetic number, because the mean of its divisors is an integer number (51634440).

Almost surely, 2^206342219 is an apocalyptic number.

206342219 is a deficient number, since it is larger than the sum of its proper divisors (195541).

206342219 is a wasteful number, since it uses less digits than its factorization.

206342219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195540.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 206342219 is about 14364.6169110074. The cubic root of 206342219 is about 590.9209203219.

The spelling of 206342219 in words is "two hundred six million, three hundred forty-two thousand, two hundred nineteen".