12643107 has 8 divisors (see below), whose sum is σ = 16891920. Its totient is φ = 8411520.

The previous prime is 12643049. The next prime is 12643109. The reversal of 12643107 is 70134621.

12643107 is nontrivially palindromic in base 14.

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

It is not a de Polignac number, because 12643107 - 2⁷ = 12642979 is a prime.

It is a super-2 number, since 2×12643107² = 319696309226898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12643109) 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 7 ways as a sum of consecutive naturals, for example, 2482 + ... + 5607.

It is an arithmetic number, because the mean of its divisors is an integer number (2111490).

Almost surely, 2^12643107 is an apocalyptic number.

12643107 is a deficient number, since it is larger than the sum of its proper divisors (4248813).

12643107 is an equidigital number, since it uses as much as digits as its factorization.

12643107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8613.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 12643107 is about 3555.7146960913. The cubic root of 12643107 is about 232.9617416477.

Adding to 12643107 its reverse (70134621), we get a palindrome (82777728).

It can be divided in two parts, 1264 and 3107, that added together give a triangular number (4371 = T₉₃).

The spelling of 12643107 in words is "twelve million, six hundred forty-three thousand, one hundred seven".