11143817 has 2 divisors, whose sum is σ = 11143818. Its totient is φ = 11143816.

The previous prime is 11143733. The next prime is 11143871. The reversal of 11143817 is 71834111.

Together with next prime (11143871) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9853321 + 1290496 = 3139^2 + 1136^2 .

It is an emirp because it is prime and its reverse (71834111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11143817 - 2¹² = 11139721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11143877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5571908 + 5571909.

It is an arithmetic number, because the mean of its divisors is an integer number (5571909).

Almost surely, 2^11143817 is an apocalyptic number.

It is an amenable number.

11143817 is a deficient number, since it is larger than the sum of its proper divisors (1).

11143817 is an equidigital number, since it uses as much as digits as its factorization.

11143817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 26.

The square root of 11143817 is about 3338.2356118165. The cubic root of 11143817 is about 223.3630462188.

Adding to 11143817 its reverse (71834111), we get a palindrome (82977928).

The spelling of 11143817 in words is "eleven million, one hundred forty-three thousand, eight hundred seventeen".