211135241 has 2 divisors, whose sum is σ = 211135242. Its totient is φ = 211135240.

The previous prime is 211135231. The next prime is 211135279. The reversal of 211135241 is 142531112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185531641 + 25603600 = 13621^2 + 5060^2 .

It is a cyclic number.

It is not a de Polignac number, because 211135241 - 2¹⁴ = 211118857 is a prime.

It is not a weakly prime, because it can be changed into another prime (211135231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105567620 + 105567621.

It is an arithmetic number, because the mean of its divisors is an integer number (105567621).

Almost surely, 2^211135241 is an apocalyptic number.

It is an amenable number.

211135241 is a deficient number, since it is larger than the sum of its proper divisors (1).

211135241 is an equidigital number, since it uses as much as digits as its factorization.

211135241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 20.

The square root of 211135241 is about 14530.4934878345. The cubic root of 211135241 is about 595.4613478137.

Adding to 211135241 its reverse (142531112), we get a palindrome (353666353).

The spelling of 211135241 in words is "two hundred eleven million, one hundred thirty-five thousand, two hundred forty-one".