512818 has 16 divisors (see below), whose sum is σ = 807840. Its totient is φ = 243936.

The previous prime is 512803. The next prime is 512819. The reversal of 512818 is 818215.

512818 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×512818² = 525964602248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 512792 and 512801.

It is not an unprimeable number, because it can be changed into a prime (512819) by changing a digit.

512818 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 7 ways as a sum of consecutive naturals, for example, 5718 + ... + 5806.

It is an arithmetic number, because the mean of its divisors is an integer number (50490).

2⁵¹²⁸¹⁸ is an apocalyptic number.

512818 is a deficient number, since it is larger than the sum of its proper divisors (295022).

512818 is a wasteful number, since it uses less digits than its factorization.

512818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201.

The product of its digits is 640, while the sum is 25.

The square root of 512818 is about 716.1131195558. The cubic root of 512818 is about 80.0425814978.

The spelling of 512818 in words is "five hundred twelve thousand, eight hundred eighteen".