262

262 = 2 x 131. It is the product of two distinct Sophie Germain primes.

262 is a meandric number: the number of ways a river can cross a road n times.

The sum of the fourth powers of the prime factors of 262 is a prime: 2⁴ + 131⁴ = 294499937, a prime.

The concatenation of the proper divisors (excluding 1 and the number itself) of 262 is a prime: 2131 .

The Messerschmitt Me 262 was the world's first operational jet-powered fighter aircraft.

Source: Wikipedia