157 is a prime number.
157 is the smallest prime number of the form 2p + p3, where p is prime.
157 is the smallest three-digit prime that produces five other primes by changing only its first digit: 257, 457, 557, 757, and 857.
1572 and (157 + 1)2 use the same digits: 24649 and 24964.
The most common type of Escherichia coli infection that causes illness in people is E. coli 0157.
Source: Prime Curios!
Image: CDC/Peggy S. Hayes