12505163 has 4 divisors (see below), whose sum is σ = 13642008. Its totient is φ = 11368320.

The previous prime is 12505151. The next prime is 12505189. The reversal of 12505163 is 36150521.

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 12505163 - 2¹² = 12501067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12505133) 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 3 ways as a sum of consecutive naturals, for example, 568406 + ... + 568427.

It is an arithmetic number, because the mean of its divisors is an integer number (3410502).

Almost surely, 2^12505163 is an apocalyptic number.

12505163 is a deficient number, since it is larger than the sum of its proper divisors (1136845).

12505163 is a wasteful number, since it uses less digits than its factorization.

12505163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136844.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 12505163 is about 3536.2639890144. The cubic root of 12505163 is about 232.1113899799. Note that the first 3 decimals are identical.

Adding to 12505163 its reverse (36150521), we get a palindrome (48655684).

The spelling of 12505163 in words is "twelve million, five hundred five thousand, one hundred sixty-three".