213564199 has 4 divisors (see below), whose sum is σ = 224804440. Its totient is φ = 202323960.

The previous prime is 213564181. The next prime is 213564209. The reversal of 213564199 is 991465312.

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 213564199 - 2⁹ = 213563687 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 (213564139) 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, 5620092 + ... + 5620129.

It is an arithmetic number, because the mean of its divisors is an integer number (56201110).

Almost surely, 2^213564199 is an apocalyptic number.

213564199 is a deficient number, since it is larger than the sum of its proper divisors (11240241).

213564199 is a wasteful number, since it uses less digits than its factorization.

213564199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11240240.

The product of its digits is 58320, while the sum is 40.

The square root of 213564199 is about 14613.8358756351. The cubic root of 213564199 is about 597.7360973553.

The spelling of 213564199 in words is "two hundred thirteen million, five hundred sixty-four thousand, one hundred ninety-nine".