513343343 has 4 divisors (see below), whose sum is σ = 519841440. Its totient is φ = 506845248.

The previous prime is 513343309. The next prime is 513343351. The reversal of 513343343 is 343343315.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513343343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513343393) 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, 3248930 + ... + 3249087.

It is an arithmetic number, because the mean of its divisors is an integer number (129960360).

Almost surely, 2^513343343 is an apocalyptic number.

513343343 is a deficient number, since it is larger than the sum of its proper divisors (6498097).

513343343 is an equidigital number, since it uses as much as digits as its factorization.

513343343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6498096.

The product of its digits is 19440, while the sum is 29.

The square root of 513343343 is about 22657.0815199134. The cubic root of 513343343 is about 800.6990468015.

Adding to 513343343 its reverse (343343315), we get a palindrome (856686658).

The spelling of 513343343 in words is "five hundred thirteen million, three hundred forty-three thousand, three hundred forty-three".