18098219 has 2 divisors, whose sum is σ = 18098220. Its totient is φ = 18098218.

The previous prime is 18098209. The next prime is 18098221. The reversal of 18098219 is 91289081.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18098219 is a prime.

It is a super-2 number, since 2×18098219² = 655091061943922, which contains 22 as substring.

Together with 18098221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18098209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9049109 + 9049110.

It is an arithmetic number, because the mean of its divisors is an integer number (9049110).

Almost surely, 2^18098219 is an apocalyptic number.

18098219 is a deficient number, since it is larger than the sum of its proper divisors (1).

18098219 is an equidigital number, since it uses as much as digits as its factorization.

18098219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 18098219 is about 4254.2001598420. The cubic root of 18098219 is about 262.5499539096.

The spelling of 18098219 in words is "eighteen million, ninety-eight thousand, two hundred nineteen".