12118563 has 12 divisors (see below), whose sum is σ = 17582760. Its totient is φ = 8042976.

The previous prime is 12118553. The next prime is 12118567. The reversal of 12118563 is 36581121.

12118563 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12118563 - 2¹⁸ = 11856419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12118567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 793 + ... + 4986.

It is an arithmetic number, because the mean of its divisors is an integer number (1465230).

Almost surely, 2^12118563 is an apocalyptic number.

12118563 is a deficient number, since it is larger than the sum of its proper divisors (5464197).

12118563 is a wasteful number, since it uses less digits than its factorization.

12118563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6018 (or 6015 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 12118563 is about 3481.1726472555. The cubic root of 12118563 is about 229.6943829952.

Adding to 12118563 its reverse (36581121), we get a palindrome (48699684).

The spelling of 12118563 in words is "twelve million, one hundred eighteen thousand, five hundred sixty-three".