516343213 has 2 divisors, whose sum is σ = 516343214. Its totient is φ = 516343212.

The previous prime is 516343199. The next prime is 516343229. The reversal of 516343213 is 312343615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408120804 + 108222409 = 20202^2 + 10403^2 .

It is a cyclic number.

It is not a de Polignac number, because 516343213 - 2¹³ = 516335021 is a prime.

It is a super-2 number, since 2×516343213² = 533220627222326738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516340213) 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 as a sum of consecutive naturals, namely, 258171606 + 258171607.

It is an arithmetic number, because the mean of its divisors is an integer number (258171607).

Almost surely, 2^516343213 is an apocalyptic number.

It is an amenable number.

516343213 is a deficient number, since it is larger than the sum of its proper divisors (1).

516343213 is an equidigital number, since it uses as much as digits as its factorization.

516343213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 516343213 is about 22723.1866823296. The cubic root of 516343213 is about 802.2557237640.

Adding to 516343213 its reverse (312343615), we get a palindrome (828686828).

The spelling of 516343213 in words is "five hundred sixteen million, three hundred forty-three thousand, two hundred thirteen".