518241 has 8 divisors (see below), whose sum is σ = 694944. Its totient is φ = 343520.

The previous prime is 518239. The next prime is 518249. The reversal of 518241 is 142815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 518241 - 2¹ = 518239 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 518241.

It is not an unprimeable number, because it can be changed into a prime (518249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301 + ... + 1061.

It is an arithmetic number, because the mean of its divisors is an integer number (86868).

2⁵¹⁸²⁴¹ is an apocalyptic number.

It is an amenable number.

518241 is a deficient number, since it is larger than the sum of its proper divisors (176703).

518241 is a wasteful number, since it uses less digits than its factorization.

518241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991.

The product of its digits is 320, while the sum is 21.

The square root of 518241 is about 719.8895748655. The cubic root of 518241 is about 80.3237402195.

The spelling of 518241 in words is "five hundred eighteen thousand, two hundred forty-one".