227531

Properties

Appears in sequences

• Primes p such that p + 2, p + 6, and the concatenation p (p+2) (p+6) is prime.at n=36A174858
• Lesser of twin primes of the form (k^2 + 2, k^2 + 4).at n=15A253639
• Lesser of twin primes p,p+2 such that the absolute difference of p and the reverse of p+2 is a twin prime and the absolute difference of p+2 and the reverse of p is a twin prime.at n=14A342299
• Primes p such that tau(p - 1) = tau(p - 2) + 1, where tau(k) is the number of divisors of k (A000005).at n=10A347078
• Prime numbersat n=20225