212834 has 4 divisors (see below), whose sum is σ = 319254. Its totient is φ = 106416.

The previous prime is 212827. The next prime is 212837. The reversal of 212834 is 438212.

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

It can be written as a sum of positive squares in only one way, i.e., 157609 + 55225 = 397^2 + 235^2 .

It is not an unprimeable number, because it can be changed into a prime (212837) by changing a digit.

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 as a sum of consecutive naturals, namely, 53207 + ... + 53210.

2²¹²⁸³⁴ is an apocalyptic number.

212834 is a deficient number, since it is larger than the sum of its proper divisors (106420).

212834 is a wasteful number, since it uses less digits than its factorization.

212834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106419.

The product of its digits is 384, while the sum is 20.

The square root of 212834 is about 461.3393544886. The cubic root of 212834 is about 59.7054078098.

The spelling of 212834 in words is "two hundred twelve thousand, eight hundred thirty-four".