212144543 has 4 divisors (see below), whose sum is σ = 228463368. Its totient is φ = 195825720.

The previous prime is 212144509. The next prime is 212144549. The reversal of 212144543 is 345441212.

212144543 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 not a de Polignac number, because 212144543 - 2²⁰ = 211095967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212144549) 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, 8159393 + ... + 8159418.

It is an arithmetic number, because the mean of its divisors is an integer number (57115842).

Almost surely, 2^212144543 is an apocalyptic number.

212144543 is a deficient number, since it is larger than the sum of its proper divisors (16318825).

212144543 is a wasteful number, since it uses less digits than its factorization.

212144543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16318824.

The product of its digits is 3840, while the sum is 26.

The square root of 212144543 is about 14565.1825597896. The cubic root of 212144543 is about 596.4086793220.

Adding to 212144543 its reverse (345441212), we get a palindrome (557585755).

It can be divided in two parts, 2121 and 44543, that added together give a palindrome (46664).

The spelling of 212144543 in words is "two hundred twelve million, one hundred forty-four thousand, five hundred forty-three".