12566341 has 4 divisors (see below), whose sum is σ = 12573472. Its totient is φ = 12559212.

The previous prime is 12566329. The next prime is 12566369. The reversal of 12566341 is 14366521.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12566341 - 2¹⁹ = 12042053 is a prime.

It is a super-2 number, since 2×12566341² = 315825852256562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12566321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1216 + ... + 5158.

It is an arithmetic number, because the mean of its divisors is an integer number (3143368).

Almost surely, 2^12566341 is an apocalyptic number.

It is an amenable number.

12566341 is a deficient number, since it is larger than the sum of its proper divisors (7131).

12566341 is an equidigital number, since it uses as much as digits as its factorization.

12566341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7130.

The product of its digits is 4320, while the sum is 28.

The square root of 12566341 is about 3544.9035247803. The cubic root of 12566341 is about 232.4892876708.

It can be divided in two parts, 125 and 66341, that added together give a palindrome (66466).

The spelling of 12566341 in words is "twelve million, five hundred sixty-six thousand, three hundred forty-one".