518249159 has 2 divisors, whose sum is σ = 518249160. Its totient is φ = 518249158.

The previous prime is 518249077. The next prime is 518249161. The reversal of 518249159 is 951942815.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-518249159 is a prime.

Together with 518249161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (518249059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259124579 + 259124580.

It is an arithmetic number, because the mean of its divisors is an integer number (259124580).

Almost surely, 2^518249159 is an apocalyptic number.

518249159 is a deficient number, since it is larger than the sum of its proper divisors (1).

518249159 is an equidigital number, since it uses as much as digits as its factorization.

518249159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 44.

The square root of 518249159 is about 22765.0864044044. The cubic root of 518249159 is about 803.2416174665.

The spelling of 518249159 in words is "five hundred eighteen million, two hundred forty-nine thousand, one hundred fifty-nine".