12534321 has 8 divisors (see below), whose sum is σ = 17695584. Its totient is φ = 7864640.

The previous prime is 12534311. The next prime is 12534329. The reversal of 12534321 is 12343521.

12534321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12534321 - 2¹⁷ = 12403249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12534329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122835 + ... + 122936.

It is an arithmetic number, because the mean of its divisors is an integer number (2211948).

Almost surely, 2^12534321 is an apocalyptic number.

It is an amenable number.

12534321 is a deficient number, since it is larger than the sum of its proper divisors (5161263).

12534321 is a wasteful number, since it uses less digits than its factorization.

12534321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245791.

The product of its digits is 720, while the sum is 21.

The square root of 12534321 is about 3540.3843011741. The cubic root of 12534321 is about 232.2916528715.

Adding to 12534321 its reverse (12343521), we get a palindrome (24877842).

The spelling of 12534321 in words is "twelve million, five hundred thirty-four thousand, three hundred twenty-one".