413

413 = 7 x 59.

413 is a semiprime (a product of two primes), but (413 - 4)⁴ + (413 - 1)¹ + (413 - 3)³ is prime with prime length, and contains a prime number of prime digits in its decimal expansion.

413 is a number n such that n and its reversal are both semiprimes: 314 = 2 x 157.

Inserting 9 between adjacent digits of 413 makes it a prime: 49193.

Telephone area code 413 covers Springfield, Mass.

Source: Prime Curios!