12643051 has 8 divisors (see below), whose sum is σ = 12913200. Its totient is φ = 12374880.

The previous prime is 12643049. The next prime is 12643109. The reversal of 12643051 is 15034621.

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 12643051 - 2¹ = 12643049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12643021) 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, 24585 + ... + 25093.

It is an arithmetic number, because the mean of its divisors is an integer number (1614150).

Almost surely, 2^12643051 is an apocalyptic number.

12643051 is a deficient number, since it is larger than the sum of its proper divisors (270149).

12643051 is an equidigital number, since it uses as much as digits as its factorization.

12643051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12643051 is about 3555.7068214351. The cubic root of 12643051 is about 232.9613976954.

Adding to 12643051 its reverse (15034621), we get a palindrome (27677672).

The spelling of 12643051 in words is "twelve million, six hundred forty-three thousand, fifty-one".