213316585 has 8 divisors (see below), whose sum is σ = 259486920. Its totient is φ = 168315264.

The previous prime is 213316583. The next prime is 213316603. The reversal of 213316585 is 585613312.

It can be written as a sum of positive squares in 4 ways, for example, as 39841344 + 173475241 = 6312^2 + 13171^2 .

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 213316585 - 2¹ = 213316583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213316585.

It is not an unprimeable number, because it can be changed into a prime (213316583) 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, 291850 + ... + 292579.

It is an arithmetic number, because the mean of its divisors is an integer number (32435865).

Almost surely, 2^213316585 is an apocalyptic number.

It is an amenable number.

213316585 is a deficient number, since it is larger than the sum of its proper divisors (46170335).

213316585 is an equidigital number, since it uses as much as digits as its factorization.

213316585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584507.

The product of its digits is 21600, while the sum is 34.

The square root of 213316585 is about 14605.3615155531. The cubic root of 213316585 is about 597.5049957858.

Adding to 213316585 its reverse (585613312), we get a palindrome (798929897).

The spelling of 213316585 in words is "two hundred thirteen million, three hundred sixteen thousand, five hundred eighty-five".