516838043 has 2 divisors, whose sum is σ = 516838044. Its totient is φ = 516838042.

The previous prime is 516838031. The next prime is 516838081. The reversal of 516838043 is 340838615.

It is an a-pointer prime, because the next prime (516838081) can be obtained adding 516838043 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516838043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 516837988 and 516838006.

It is not a weakly prime, because it can be changed into another prime (516838093) 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, 258419021 + 258419022.

It is an arithmetic number, because the mean of its divisors is an integer number (258419022).

Almost surely, 2^516838043 is an apocalyptic number.

516838043 is a deficient number, since it is larger than the sum of its proper divisors (1).

516838043 is an equidigital number, since it uses as much as digits as its factorization.

516838043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 516838043 is about 22734.0722924864. The cubic root of 516838043 is about 802.5119186385.

The spelling of 516838043 in words is "five hundred sixteen million, eight hundred thirty-eight thousand, forty-three".