518461 has 4 divisors (see below), whose sum is σ = 520000. Its totient is φ = 516924.

The previous prime is 518447. The next prime is 518467. The reversal of 518461 is 164815.

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.

It is a cyclic number.

It is not a de Polignac number, because 518461 - 2⁵ = 518429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518467) 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, 21 + ... + 1018.

It is an arithmetic number, because the mean of its divisors is an integer number (130000).

2⁵¹⁸⁴⁶¹ is an apocalyptic number.

It is an amenable number.

518461 is a deficient number, since it is larger than the sum of its proper divisors (1539).

518461 is a wasteful number, since it uses less digits than its factorization.

518461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538.

The product of its digits is 960, while the sum is 25.

The square root of 518461 is about 720.0423598650. The cubic root of 518461 is about 80.3351047667.

It can be divided in two parts, 518 and 461, that added together give a palindrome (979).

The spelling of 518461 in words is "five hundred eighteen thousand, four hundred sixty-one".