211344133 has 48 divisors (see below), whose sum is σ = 289872000. Its totient is φ = 149610240.

The previous prime is 211344127. The next prime is 211344151. The reversal of 211344133 is 331443112.

It is a de Polignac number, because none of the positive numbers 2^k-211344133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211344113) 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 in 47 ways as a sum of consecutive naturals, for example, 1418343 + ... + 1418491.

It is an arithmetic number, because the mean of its divisors is an integer number (6039000).

Almost surely, 2^211344133 is an apocalyptic number.

It is an amenable number.

211344133 is a deficient number, since it is larger than the sum of its proper divisors (78527867).

211344133 is a wasteful number, since it uses less digits than its factorization.

211344133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 289 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 211344133 is about 14537.6797667303. The cubic root of 211344133 is about 595.6576613423.

Adding to 211344133 its reverse (331443112), we get a palindrome (542787245).

The spelling of 211344133 in words is "two hundred eleven million, three hundred forty-four thousand, one hundred thirty-three".