518941 has 4 divisors (see below), whose sum is σ = 520384. Its totient is φ = 517500.

The previous prime is 518933. The next prime is 518953. The reversal of 518941 is 149815.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 518941 - 2³ = 518933 is a prime.

It is a super-2 number, since 2×518941² = 538599522962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316 + ... + 1066.

It is an arithmetic number, because the mean of its divisors is an integer number (130096).

2⁵¹⁸⁹⁴¹ is an apocalyptic number.

It is an amenable number.

518941 is a deficient number, since it is larger than the sum of its proper divisors (1443).

518941 is an equidigital number, since it uses as much as digits as its factorization.

518941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442.

The product of its digits is 1440, while the sum is 28.

The square root of 518941 is about 720.3755964773. The cubic root of 518941 is about 80.3598889879.

The spelling of 518941 in words is "five hundred eighteen thousand, nine hundred forty-one".