518249 has 2 divisors, whose sum is σ = 518250. Its totient is φ = 518248.

The previous prime is 518239. The next prime is 518261. The reversal of 518249 is 942815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283024 + 235225 = 532^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 518249 - 2⁴ = 518233 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 518249.

It is not a weakly prime, because it can be changed into another prime (518209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259124 + 259125.

It is an arithmetic number, because the mean of its divisors is an integer number (259125).

2⁵¹⁸²⁴⁹ is an apocalyptic number.

It is an amenable number.

518249 is a deficient number, since it is larger than the sum of its proper divisors (1).

518249 is an equidigital number, since it uses as much as digits as its factorization.

518249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 518249 is about 719.8951312518. The cubic root of 518249 is about 80.3241535321.

It can be divided in two parts, 518 and 249, that added together give a palindrome (767).

The spelling of 518249 in words is "five hundred eighteen thousand, two hundred forty-nine".