12805163 has 4 divisors (see below), whose sum is σ = 14634480. Its totient is φ = 10975848.

The previous prime is 12805147. The next prime is 12805187. The reversal of 12805163 is 36150821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12805163 - 2⁴ = 12805147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12805193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914648 + ... + 914661.

It is an arithmetic number, because the mean of its divisors is an integer number (3658620).

Almost surely, 2^12805163 is an apocalyptic number.

12805163 is a deficient number, since it is larger than the sum of its proper divisors (1829317).

12805163 is an equidigital number, since it uses as much as digits as its factorization.

12805163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829316.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12805163 is about 3578.4302424387. The cubic root of 12805163 is about 233.9528662950.

Adding to 12805163 its reverse (36150821), we get a palindrome (48955984).

The spelling of 12805163 in words is "twelve million, eight hundred five thousand, one hundred sixty-three".