213185 has 8 divisors (see below), whose sum is σ = 292416. Its totient is φ = 146160.

The previous prime is 213181. The next prime is 213193. The reversal of 213185 is 581312.

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

It is not a de Polignac number, because 213185 - 2² = 213181 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3011 + ... + 3080.

It is an arithmetic number, because the mean of its divisors is an integer number (36552).

2²¹³¹⁸⁵ is an apocalyptic number.

It is an amenable number.

213185 is a deficient number, since it is larger than the sum of its proper divisors (79231).

213185 is an equidigital number, since it uses as much as digits as its factorization.

213185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6103.

The product of its digits is 240, while the sum is 20.

The square root of 213185 is about 461.7196118858. The cubic root of 213185 is about 59.7382112909.

Adding to 213185 its reverse (581312), we get a palindrome (794497).

The spelling of 213185 in words is "two hundred thirteen thousand, one hundred eighty-five".