229681domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes with 34 as smallest positive primitive root.at n=4A061737Primes from merging of 6 successive digits in decimal expansion of exp(Pi).at n=25A105011Primes of the form p^2 + (p + 1)/2 where p is also prime.at n=19A164580Prime numbersat n=20406