1217219 has 2 divisors, whose sum is σ = 1217220. Its totient is φ = 1217218.

The previous prime is 1217213. The next prime is 1217233. The reversal of 1217219 is 9127121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1217219 - 2²⁰ = 168643 is a prime.

It is a super-2 number, since 2×1217219² = 2963244187922, 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 = 1217194 and 1217203.

It is not a weakly prime, because it can be changed into another prime (1217213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608609 + 608610.

It is an arithmetic number, because the mean of its divisors is an integer number (608610).

2^1217219 is an apocalyptic number.

1217219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1217219 is an equidigital number, since it uses as much as digits as its factorization.

1217219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252, while the sum is 23.

The square root of 1217219 is about 1103.2764839332. The cubic root of 1217219 is about 106.7717205024.

The spelling of 1217219 in words is "one million, two hundred seventeen thousand, two hundred nineteen".