285336313 has 8 divisors (see below), whose sum is σ = 302284008. Its totient is φ = 268406784.

The previous prime is 285336287. The next prime is 285336323. The reversal of 285336313 is 313633582.

It can be written as a sum of positive squares in 4 ways, for example, as 47775744 + 237560569 = 6912^2 + 15413^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285336313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285336323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40845 + ... + 47317.

It is an arithmetic number, because the mean of its divisors is an integer number (37785501).

Almost surely, 2^285336313 is an apocalyptic number.

It is an amenable number.

285336313 is a deficient number, since it is larger than the sum of its proper divisors (16947695).

285336313 is a wasteful number, since it uses less digits than its factorization.

285336313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9083.

The product of its digits is 38880, while the sum is 34.

The square root of 285336313 is about 16891.9008107436. The cubic root of 285336313 is about 658.3431913210.

Adding to 285336313 its reverse (313633582), we get a palindrome (598969895).

The spelling of 285336313 in words is "two hundred eighty-five million, three hundred thirty-six thousand, three hundred thirteen".