12643101 has 32 divisors (see below), whose sum is σ = 19747200. Its totient is φ = 7983360.

The previous prime is 12643049. The next prime is 12643109. The reversal of 12643101 is 10134621.

It is a happy number.

12643101 is a `hidden beast` number, since 12 + 643 + 10 + 1 = 666.

12643101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12643101 - 2⁹ = 12642589 is a prime.

It is a super-3 number, since 3×12643101³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12643109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52341 + ... + 52581.

It is an arithmetic number, because the mean of its divisors is an integer number (617100).

Almost surely, 2^12643101 is an apocalyptic number.

It is an amenable number.

12643101 is a deficient number, since it is larger than the sum of its proper divisors (7104099).

12643101 is a wasteful number, since it uses less digits than its factorization.

12643101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12643101 is about 3555.7138523790. The cubic root of 12643101 is about 232.9617047957.

Adding to 12643101 its reverse (10134621), we get a palindrome (22777722).

The spelling of 12643101 in words is "twelve million, six hundred forty-three thousand, one hundred one".