345244219 has 2 divisors, whose sum is σ = 345244220. Its totient is φ = 345244218.

The previous prime is 345244199. The next prime is 345244253. The reversal of 345244219 is 912442543.

It is an a-pointer prime, because the next prime (345244253) can be obtained adding 345244219 to its sum of digits (34).

It is a weak prime.

It is an emirp because it is prime and its reverse (912442543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345244219 - 2⁷ = 345244091 is a prime.

It is a super-2 number, since 2×345244219² = 238387141505839922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (345244259) 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, 172622109 + 172622110.

It is an arithmetic number, because the mean of its divisors is an integer number (172622110).

Almost surely, 2^345244219 is an apocalyptic number.

345244219 is a deficient number, since it is larger than the sum of its proper divisors (1).

345244219 is an equidigital number, since it uses as much as digits as its factorization.

345244219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 345244219 is about 18580.7486124752. The cubic root of 345244219 is about 701.5233619987.

The spelling of 345244219 in words is "three hundred forty-five million, two hundred forty-four thousand, two hundred nineteen".