1191373

Properties

Appears in sequences

• Prime numbers that are the sum of the divisors of some n.at n=36A023195
• Primes of the form p^2 + p + 1 when p is prime.at n=23A053183
• Record values of A062700.at n=20A100382
• Primes p of the form sigma(2q-1) where q is a prime.at n=11A247836
• Primes p of the form sigma(2k-1) for a number k.at n=30A247837
• Primes p such that there is prime q with sigma(q+2) = p.at n=15A247955
• Primes of the form (p^k)^2 + p^k + 1 with prime p and positive integer k.at n=26A342691
• Prime numbersat n=92324