213552543 has 4 divisors (see below), whose sum is σ = 284736728. Its totient is φ = 142368360.

The previous prime is 213552527. The next prime is 213552551. The reversal of 213552543 is 345255312.

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

It is not a de Polignac number, because 213552543 - 2⁴ = 213552527 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 213552543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213552553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35592088 + ... + 35592093.

It is an arithmetic number, because the mean of its divisors is an integer number (71184182).

Almost surely, 2^213552543 is an apocalyptic number.

213552543 is a deficient number, since it is larger than the sum of its proper divisors (71184185).

213552543 is an equidigital number, since it uses as much as digits as its factorization.

213552543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71184184.

The product of its digits is 18000, while the sum is 30.

The square root of 213552543 is about 14613.4370700393. The cubic root of 213552543 is about 597.7252226570.

The spelling of 213552543 in words is "two hundred thirteen million, five hundred fifty-two thousand, five hundred forty-three".