213066543 has 4 divisors (see below), whose sum is σ = 284088728. Its totient is φ = 142044360.

The previous prime is 213066541. The next prime is 213066563. The reversal of 213066543 is 345660312.

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

It is not a de Polignac number, because 213066543 - 2¹ = 213066541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213066543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213066541) 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, 35511088 + ... + 35511093.

It is an arithmetic number, because the mean of its divisors is an integer number (71022182).

Almost surely, 2^213066543 is an apocalyptic number.

213066543 is a deficient number, since it is larger than the sum of its proper divisors (71022185).

213066543 is an equidigital number, since it uses as much as digits as its factorization.

213066543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71022184.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 213066543 is about 14596.7990669187. The cubic root of 213066543 is about 597.2714465809.

The spelling of 213066543 in words is "two hundred thirteen million, sixty-six thousand, five hundred forty-three".