211256 has 8 divisors (see below), whose sum is σ = 396120. Its totient is φ = 105624.

The previous prime is 211247. The next prime is 211271. The reversal of 211256 is 652112.

211256 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13196 + ... + 13211.

It is an arithmetic number, because the mean of its divisors is an integer number (49515).

2²¹¹²⁵⁶ is an apocalyptic number.

It is an amenable number.

211256 is a deficient number, since it is larger than the sum of its proper divisors (184864).

211256 is a wasteful number, since it uses less digits than its factorization.

211256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26413 (or 26409 counting only the distinct ones).

The product of its digits is 120, while the sum is 17.

The square root of 211256 is about 459.6259348644. The cubic root of 211256 is about 59.5574851070.

Adding to 211256 its reverse (652112), we get a palindrome (863368).

The spelling of 211256 in words is "two hundred eleven thousand, two hundred fifty-six".