213185213 has 8 divisors (see below), whose sum is σ = 216602880. Its totient is φ = 209785680.

The previous prime is 213185209. The next prime is 213185221. The reversal of 213185213 is 312581312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213185213 - 2² = 213185209 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 (213185513) 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 7 ways as a sum of consecutive naturals, for example, 20231 + ... + 28907.

It is an arithmetic number, because the mean of its divisors is an integer number (27075360).

Almost surely, 2^213185213 is an apocalyptic number.

It is an amenable number.

213185213 is a deficient number, since it is larger than the sum of its proper divisors (3417667).

213185213 is an equidigital number, since it uses as much as digits as its factorization.

213185213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9067.

The product of its digits is 1440, while the sum is 26.

The square root of 213185213 is about 14600.8634333727. The cubic root of 213185213 is about 597.3823118639.

The spelling of 213185213 in words is "two hundred thirteen million, one hundred eighty-five thousand, two hundred thirteen".