11143663 has 16 divisors (see below), whose sum is σ = 11999232. Its totient is φ = 10332000.

The previous prime is 11143631. The next prime is 11143667. The reversal of 11143663 is 36634111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11143663 - 2⁵ = 11143631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134220 + ... + 134302.

It is an arithmetic number, because the mean of its divisors is an integer number (749952).

Almost surely, 2^11143663 is an apocalyptic number.

11143663 is a deficient number, since it is larger than the sum of its proper divisors (855569).

11143663 is an equidigital number, since it uses as much as digits as its factorization.

11143663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246.

The product of its digits is 1296, while the sum is 25.

The square root of 11143663 is about 3338.2125456597. The cubic root of 11143663 is about 223.3620173054.

Adding to 11143663 its reverse (36634111), we get a palindrome (47777774).

The spelling of 11143663 in words is "eleven million, one hundred forty-three thousand, six hundred sixty-three".