205262219 has 2 divisors, whose sum is σ = 205262220. Its totient is φ = 205262218.

The previous prime is 205262201. The next prime is 205262243. The reversal of 205262219 is 912262502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205262219 - 2⁸ = 205261963 is a prime.

It is a super-2 number, since 2×205262219² = 84265157097607922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 205262191 and 205262200.

It is not a weakly prime, because it can be changed into another prime (205262819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102631109 + 102631110.

It is an arithmetic number, because the mean of its divisors is an integer number (102631110).

Almost surely, 2^205262219 is an apocalyptic number.

205262219 is a deficient number, since it is larger than the sum of its proper divisors (1).

205262219 is an equidigital number, since it uses as much as digits as its factorization.

205262219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 205262219 is about 14326.9752215881. The cubic root of 205262219 is about 589.8881517367. Note that the first 3 decimals are identical.

The spelling of 205262219 in words is "two hundred five million, two hundred sixty-two thousand, two hundred nineteen".