512340343 has 4 divisors (see below), whose sum is σ = 512398008. Its totient is φ = 512282680.

The previous prime is 512340319. The next prime is 512340349. The reversal of 512340343 is 343043215.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 512340343 - 2²¹ = 510243191 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 (512340349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12373 + ... + 34318.

It is an arithmetic number, because the mean of its divisors is an integer number (128099502).

Almost surely, 2^512340343 is an apocalyptic number.

512340343 is a deficient number, since it is larger than the sum of its proper divisors (57665).

512340343 is a wasteful number, since it uses less digits than its factorization.

512340343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57664.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 512340343 is about 22634.9363374408. The cubic root of 512340343 is about 800.1772227164.

Adding to 512340343 its reverse (343043215), we get a palindrome (855383558).

The spelling of 512340343 in words is "five hundred twelve million, three hundred forty thousand, three hundred forty-three".