205312316 has 18 divisors (see below), whose sum is σ = 394930200. Its totient is φ = 93323560.

The previous prime is 205312307. The next prime is 205312339. The reversal of 205312316 is 613213502.

205312316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 205312291 and 205312300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211616 + ... + 212583.

Almost surely, 2^205312316 is an apocalyptic number.

It is an amenable number.

205312316 is a deficient number, since it is larger than the sum of its proper divisors (189617884).

205312316 is a wasteful number, since it uses less digits than its factorization.

205312316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424225 (or 424212 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 205312316 is about 14328.7234602389. The cubic root of 205312316 is about 589.9361378737.

Adding to 205312316 its reverse (613213502), we get a palindrome (818525818).

The spelling of 205312316 in words is "two hundred five million, three hundred twelve thousand, three hundred sixteen".