518854241 has 2 divisors, whose sum is σ = 518854242. Its totient is φ = 518854240.

The previous prime is 518854213. The next prime is 518854243. The reversal of 518854241 is 142458815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 462078016 + 56776225 = 21496^2 + 7535^2 .

It is a cyclic number.

It is not a de Polignac number, because 518854241 - 2⁶ = 518854177 is a prime.

Together with 518854243, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 518854195 and 518854204.

It is not a weakly prime, because it can be changed into another prime (518854243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259427120 + 259427121.

It is an arithmetic number, because the mean of its divisors is an integer number (259427121).

Almost surely, 2^518854241 is an apocalyptic number.

It is an amenable number.

518854241 is a deficient number, since it is larger than the sum of its proper divisors (1).

518854241 is an equidigital number, since it uses as much as digits as its factorization.

518854241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51200, while the sum is 38.

The square root of 518854241 is about 22778.3722201566. The cubic root of 518854241 is about 803.5541042340.

The spelling of 518854241 in words is "five hundred eighteen million, eight hundred fifty-four thousand, two hundred forty-one".