211238 has 4 divisors (see below), whose sum is σ = 316860. Its totient is φ = 105618.

The previous prime is 211231. The next prime is 211241. The reversal of 211238 is 832112.

211238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211231) by changing a digit.

211238 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 as a sum of consecutive naturals, namely, 52808 + ... + 52811.

It is an arithmetic number, because the mean of its divisors is an integer number (79215).

2²¹¹²³⁸ is an apocalyptic number.

211238 is a deficient number, since it is larger than the sum of its proper divisors (105622).

211238 is a wasteful number, since it uses less digits than its factorization.

211238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105621.

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

The square root of 211238 is about 459.6063533068. The cubic root of 211238 is about 59.5557935335. Note that the first 3 decimals are identical.

The spelling of 211238 in words is "two hundred eleven thousand, two hundred thirty-eight".