211156 has 12 divisors (see below), whose sum is σ = 403200. Its totient is φ = 95960.

The previous prime is 211153. The next prime is 211177. The reversal of 211156 is 651112.

It is a happy number.

211156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2356 + ... + 2443.

It is an arithmetic number, because the mean of its divisors is an integer number (33600).

2²¹¹¹⁵⁶ is an apocalyptic number.

It is an amenable number.

211156 is a deficient number, since it is larger than the sum of its proper divisors (192044).

211156 is a wasteful number, since it uses less digits than its factorization.

211156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4814 (or 4812 counting only the distinct ones).

The product of its digits is 60, while the sum is 16.

The square root of 211156 is about 459.5171378741. The cubic root of 211156 is about 59.5480862599.

Adding to 211156 its reverse (651112), we get a palindrome (862268).

The spelling of 211156 in words is "two hundred eleven thousand, one hundred fifty-six".