2212543 has 4 divisors (see below), whose sum is σ = 2234128. Its totient is φ = 2190960.

The previous prime is 2212537. The next prime is 2212547. The reversal of 2212543 is 3452122.

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-2212543 is a prime.

It is a Duffinian number.

2212543 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2212543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212547) 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, 10638 + ... + 10843.

It is an arithmetic number, because the mean of its divisors is an integer number (558532).

2^2212543 is an apocalyptic number.

2212543 is a deficient number, since it is larger than the sum of its proper divisors (21585).

2212543 is a wasteful number, since it uses less digits than its factorization.

2212543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21584.

The product of its digits is 480, while the sum is 19.

The square root of 2212543 is about 1487.4619322860. The cubic root of 2212543 is about 130.3058479219.

Adding to 2212543 its reverse (3452122), we get a palindrome (5664665).

The spelling of 2212543 in words is "two million, two hundred twelve thousand, five hundred forty-three".