1941491domain: NPropertiesPrimalityPrimeyesAppears in sequencesPalindromic primes with middle digit 1.at n=20A082436Least k such that 2^(2^k) = n (mod k).at n=5A155886Palindromic primes using only (decimal) square digits 0,1,4,9.at n=16A174884Prime numbersat n=144915