513284 has 6 divisors (see below), whose sum is σ = 898254. Its totient is φ = 256640.

The previous prime is 513283. The next prime is 513307. The reversal of 513284 is 482315.

It can be written as a sum of positive squares in only one way, i.e., 409600 + 103684 = 640^2 + 322^2 .

It is not an unprimeable number, because it can be changed into a prime (513283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64157 + ... + 64164.

It is an arithmetic number, because the mean of its divisors is an integer number (149709).

2⁵¹³²⁸⁴ is an apocalyptic number.

It is an amenable number.

513284 is a deficient number, since it is larger than the sum of its proper divisors (384970).

513284 is a wasteful number, since it uses less digits than its factorization.

513284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128325 (or 128323 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 513284 is about 716.4384132638. The cubic root of 513284 is about 80.0668191744.

Adding to 513284 its reverse (482315), we get a palindrome (995599).

It can be divided in two parts, 513 and 284, that added together give a palindrome (797).

The spelling of 513284 in words is "five hundred thirteen thousand, two hundred eighty-four".