212318 has 8 divisors (see below), whose sum is σ = 324648. Its totient is φ = 104104.

The previous prime is 212297. The next prime is 212353. The reversal of 212318 is 813212.

212318 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

212318 is a modest number, since divided by 318 gives 212 as remainder.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 212296 and 212305.

It is a congruent number.

It is an unprimeable number.

212318 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896 + ... + 1107.

It is an arithmetic number, because the mean of its divisors is an integer number (40581).

2²¹²³¹⁸ is an apocalyptic number.

212318 is a deficient number, since it is larger than the sum of its proper divisors (112330).

212318 is a wasteful number, since it uses less digits than its factorization.

212318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058.

The product of its digits is 96, while the sum is 17.

The square root of 212318 is about 460.7797738617. The cubic root of 212318 is about 59.6571183428.

The spelling of 212318 in words is "two hundred twelve thousand, three hundred eighteen".