11197 has 2 divisors, whose sum is σ = 11198.
Its totient is φ = 11196.
The previous prime is 11177. The next prime is 11213. The reversal of 11197 is 79111.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 8281 + 2916 = 91^2 + 54^2
It is an emirp because it is prime and its reverse (79111) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 11197 - 27 = 11069 is a prime.
It is a Chen prime.
It is an Ulam number.
11197 is a lucky number.
It is a plaindrome in base 16.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (11117) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5598 + 5599.
It is an arithmetic number, because the mean of its divisors is an integer number (5599).
211197 is an apocalyptic number.
It is an amenable number.
11197 is a deficient number, since it is larger than the sum of its proper divisors (1).
11197 is an equidigital number, since it uses as much as digits as its factorization.
11197 is an evil number, because the sum of its binary digits is even.
The product of its digits is 63, while the sum is 19.
The square root of 11197 is about 105.8158778256.
The cubic root of 11197 is about 22.3717810044.
The spelling of 11197 in words is "eleven thousand, one hundred ninety-seven".