12026641 has 4 divisors (see below), whose sum is σ = 13119984. Its totient is φ = 10933300.

The previous prime is 12026603. The next prime is 12026647. The reversal of 12026641 is 14662021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12026641 - 2⁷ = 12026513 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12026647) 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 3 ways as a sum of consecutive naturals, for example, 546655 + ... + 546676.

It is an arithmetic number, because the mean of its divisors is an integer number (3279996).

Almost surely, 2^12026641 is an apocalyptic number.

12026641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12026641 is a deficient number, since it is larger than the sum of its proper divisors (1093343).

12026641 is a wasteful number, since it uses less digits than its factorization.

12026641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093342.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12026641 is about 3467.9447804139. The cubic root of 12026641 is about 229.1121473540.

Adding to 12026641 its reverse (14662021), we get a palindrome (26688662).

The spelling of 12026641 in words is "twelve million, twenty-six thousand, six hundred forty-one".