12536321 has 8 divisors (see below), whose sum is σ = 14357184. Its totient is φ = 10722960.

The previous prime is 12536299. The next prime is 12536339. The reversal of 12536321 is 12363521.

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 12536321 - 2¹⁰ = 12535297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12536351) 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, 2351 + ... + 5531.

It is an arithmetic number, because the mean of its divisors is an integer number (1794648).

Almost surely, 2^12536321 is an apocalyptic number.

It is an amenable number.

12536321 is a deficient number, since it is larger than the sum of its proper divisors (1820863).

12536321 is an equidigital number, since it uses as much as digits as its factorization.

12536321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751.

The product of its digits is 1080, while the sum is 23.

The square root of 12536321 is about 3540.6667451202. Note that the first 3 decimals coincide. The cubic root of 12536321 is about 232.3040071798.

Adding to 12536321 its reverse (12363521), we get a palindrome (24899842).

The spelling of 12536321 in words is "twelve million, five hundred thirty-six thousand, three hundred twenty-one".