12642163 has 8 divisors (see below), whose sum is σ = 13507520. Its totient is φ = 11796840.

The previous prime is 12642139. The next prime is 12642181. The reversal of 12642163 is 36124621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12642163 - 2⁵ = 12642131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12642263) 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 7 ways as a sum of consecutive naturals, for example, 3693 + ... + 6238.

It is an arithmetic number, because the mean of its divisors is an integer number (1688440).

Almost surely, 2^12642163 is an apocalyptic number.

12642163 is a deficient number, since it is larger than the sum of its proper divisors (865357).

12642163 is an equidigital number, since it uses as much as digits as its factorization.

12642163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10017.

The product of its digits is 1728, while the sum is 25.

The square root of 12642163 is about 3555.5819495548. The cubic root of 12642163 is about 232.9559434590.

Adding to 12642163 its reverse (36124621), we get a palindrome (48766784).

The spelling of 12642163 in words is "twelve million, six hundred forty-two thousand, one hundred sixty-three".