189997999domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmallest prime whose digital sum is equal to the n-th composite number not congruent to 0 (modulo 3).at n=27A111380Least prime p with digit sum A047235(n).at n=23A152652Primes with digital sum 70.at n=0A181321Prime numbersat n=10555372