211441 has 2 divisors, whose sum is σ = 211442. Its totient is φ = 211440.

The previous prime is 211433. The next prime is 211457. The reversal of 211441 is 144112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119025 + 92416 = 345^2 + 304^2 .

It is a cyclic number.

It is not a de Polignac number, because 211441 - 2³ = 211433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (211241) 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, 105720 + 105721.

It is an arithmetic number, because the mean of its divisors is an integer number (105721).

2²¹¹⁴⁴¹ is an apocalyptic number.

It is an amenable number.

211441 is a deficient number, since it is larger than the sum of its proper divisors (1).

211441 is an equidigital number, since it uses as much as digits as its factorization.

211441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32, while the sum is 13.

The square root of 211441 is about 459.8271414347. The cubic root of 211441 is about 59.5748651578.

Adding to 211441 its reverse (144112), we get a palindrome (355553).

The spelling of 211441 in words is "two hundred eleven thousand, four hundred forty-one", and thus it is an iban number.