561344219 has 2 divisors, whose sum is σ = 561344220. Its totient is φ = 561344218.

The previous prime is 561344209. The next prime is 561344257. The reversal of 561344219 is 912443165.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561344219 is a prime.

It is a super-2 number, since 2×561344219² = 630214664409439922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (561344209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280672109 + 280672110.

It is an arithmetic number, because the mean of its divisors is an integer number (280672110).

Almost surely, 2^561344219 is an apocalyptic number.

561344219 is a deficient number, since it is larger than the sum of its proper divisors (1).

561344219 is an equidigital number, since it uses as much as digits as its factorization.

561344219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 561344219 is about 23692.7039191393. The cubic root of 561344219 is about 824.9160460636.

The spelling of 561344219 in words is "five hundred sixty-one million, three hundred forty-four thousand, two hundred nineteen".