2185213 has 4 divisors (see below), whose sum is σ = 2197468. Its totient is φ = 2172960.

The previous prime is 2185201. The next prime is 2185241. The reversal of 2185213 is 3125812.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33124 + 2152089 = 182^2 + 1467^2 .

It is a cyclic number.

It is not a de Polignac number, because 2185213 - 2⁵ = 2185181 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 (2185913) 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, 5856 + ... + 6217.

It is an arithmetic number, because the mean of its divisors is an integer number (549367).

2^2185213 is an apocalyptic number.

It is an amenable number.

2185213 is a deficient number, since it is larger than the sum of its proper divisors (12255).

2185213 is a wasteful number, since it uses less digits than its factorization.

2185213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12254.

The product of its digits is 480, while the sum is 22.

The square root of 2185213 is about 1478.2465964784. The cubic root of 2185213 is about 129.7670977848.

The spelling of 2185213 in words is "two million, one hundred eighty-five thousand, two hundred thirteen".