1205219 has 2 divisors, whose sum is σ = 1205220. Its totient is φ = 1205218.

The previous prime is 1205179. The next prime is 1205231. The reversal of 1205219 is 9125021.

It is a strong prime.

It is an emirp because it is prime and its reverse (9125021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1205219 - 2¹⁶ = 1139683 is a prime.

It is a super-2 number, since 2×1205219² = 2905105675922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1205219.

It is not a weakly prime, because it can be changed into another prime (1205119) 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 as a sum of consecutive naturals, namely, 602609 + 602610.

It is an arithmetic number, because the mean of its divisors is an integer number (602610).

2^1205219 is an apocalyptic number.

1205219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205219 is an equidigital number, since it uses as much as digits as its factorization.

1205219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1205219 is about 1097.8246672397. The cubic root of 1205219 is about 106.4196900922.

The spelling of 1205219 in words is "one million, two hundred five thousand, two hundred nineteen".