212854 has 4 divisors (see below), whose sum is σ = 319284. Its totient is φ = 106426.

The previous prime is 212851. The next prime is 212867. The reversal of 212854 is 458212.

212854 is nontrivially palindromic in base 6.

212854 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212851) 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 as a sum of consecutive naturals, namely, 53212 + ... + 53215.

It is an arithmetic number, because the mean of its divisors is an integer number (79821).

2²¹²⁸⁵⁴ is an apocalyptic number.

212854 is a deficient number, since it is larger than the sum of its proper divisors (106430).

212854 is a wasteful number, since it uses less digits than its factorization.

212854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106429.

The product of its digits is 640, while the sum is 22.

The square root of 212854 is about 461.3610299971. The cubic root of 212854 is about 59.7072779226.

The spelling of 212854 in words is "two hundred twelve thousand, eight hundred fifty-four".