11517197 has 2 divisors, whose sum is σ = 11517198. Its totient is φ = 11517196.

The previous prime is 11517169. The next prime is 11517199. The reversal of 11517197 is 79171511.

It is a happy number.

11517197 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6584356 + 4932841 = 2566^2 + 2221^2 .

It is an emirp because it is prime and its reverse (79171511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11517197 - 2⁶ = 11517133 is a prime.

Together with 11517199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11517199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5758598 + 5758599.

It is an arithmetic number, because the mean of its divisors is an integer number (5758599).

Almost surely, 2^11517197 is an apocalyptic number.

It is an amenable number.

11517197 is a deficient number, since it is larger than the sum of its proper divisors (1).

11517197 is an equidigital number, since it uses as much as digits as its factorization.

11517197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2205, while the sum is 32.

The square root of 11517197 is about 3393.6996036774. The cubic root of 11517197 is about 225.8303279179.

The spelling of 11517197 in words is "eleven million, five hundred seventeen thousand, one hundred ninety-seven".