513143684 has 12 divisors (see below), whose sum is σ = 898406208. Its totient is φ = 256456200.

The previous prime is 513143681. The next prime is 513143693. The reversal of 513143684 is 486341315.

It is not an unprimeable number, because it can be changed into a prime (513143681) 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, 18512 + ... + 36999.

It is an arithmetic number, because the mean of its divisors is an integer number (74867184).

Almost surely, 2^513143684 is an apocalyptic number.

It is an amenable number.

513143684 is a deficient number, since it is larger than the sum of its proper divisors (385262524).

513143684 is a wasteful number, since it uses less digits than its factorization.

513143684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57826 (or 57824 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 513143684 is about 22652.6749855288. The cubic root of 513143684 is about 800.5952257730.

Adding to 513143684 its reverse (486341315), we get a palindrome (999484999).

The spelling of 513143684 in words is "five hundred thirteen million, one hundred forty-three thousand, six hundred eighty-four".