12214543 has 4 divisors (see below), whose sum is σ = 13324968. Its totient is φ = 11104120.

The previous prime is 12214523. The next prime is 12214561. The reversal of 12214543 is 34541221.

12214543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12214543 is a prime.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12214523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555196 + ... + 555217.

It is an arithmetic number, because the mean of its divisors is an integer number (3331242).

Almost surely, 2^12214543 is an apocalyptic number.

12214543 is a deficient number, since it is larger than the sum of its proper divisors (1110425).

12214543 is a wasteful number, since it uses less digits than its factorization.

12214543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110424.

The product of its digits is 960, while the sum is 22.

The square root of 12214543 is about 3494.9310436688. The cubic root of 12214543 is about 230.2991884609.

Adding to 12214543 its reverse (34541221), we get a palindrome (46755764).

The spelling of 12214543 in words is "twelve million, two hundred fourteen thousand, five hundred forty-three".