12643063 has 4 divisors (see below), whose sum is σ = 12655960. Its totient is φ = 12630168.

The previous prime is 12643049. The next prime is 12643109. The reversal of 12643063 is 36034621.

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 12643063 - 2¹⁷ = 12511991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12643003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4845 + ... + 6982.

It is an arithmetic number, because the mean of its divisors is an integer number (3163990).

Almost surely, 2^12643063 is an apocalyptic number.

12643063 is a deficient number, since it is larger than the sum of its proper divisors (12897).

12643063 is a wasteful number, since it uses less digits than its factorization.

12643063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12896.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 12643063 is about 3555.7085088629. The cubic root of 12643063 is about 232.9614713995.

Adding to 12643063 its reverse (36034621), we get a palindrome (48677684).

The spelling of 12643063 in words is "twelve million, six hundred forty-three thousand, sixty-three".