109618219 has 2 divisors, whose sum is σ = 109618220. Its totient is φ = 109618218.

The previous prime is 109618217. The next prime is 109618247. The reversal of 109618219 is 912816901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109618219 - 2¹ = 109618217 is a prime.

It is a super-2 number, since 2×109618219² = 24032307873463922, which contains 22 as substring.

Together with 109618217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (109618217) 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, 54809109 + 54809110.

It is an arithmetic number, because the mean of its divisors is an integer number (54809110).

Almost surely, 2^109618219 is an apocalyptic number.

109618219 is a deficient number, since it is larger than the sum of its proper divisors (1).

109618219 is an equidigital number, since it uses as much as digits as its factorization.

109618219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 109618219 is about 10469.8719667434. The cubic root of 109618219 is about 478.5870179903.

The spelling of 109618219 in words is "one hundred nine million, six hundred eighteen thousand, two hundred nineteen".