211187133 has 12 divisors (see below), whose sum is σ = 306266688. Its totient is φ = 140229000.

The previous prime is 211187131. The next prime is 211187143. The reversal of 211187133 is 331781112.

It is a happy number.

It is not a de Polignac number, because 211187133 - 2¹ = 211187131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211187097 and 211187106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211187131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44485 + ... + 49002.

It is an arithmetic number, because the mean of its divisors is an integer number (25522224).

Almost surely, 2^211187133 is an apocalyptic number.

It is an amenable number.

211187133 is a deficient number, since it is larger than the sum of its proper divisors (95079555).

211187133 is a wasteful number, since it uses less digits than its factorization.

211187133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93744 (or 93741 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 211187133 is about 14532.2790022763. The cubic root of 211187133 is about 595.5101272105.

The spelling of 211187133 in words is "two hundred eleven million, one hundred eighty-seven thousand, one hundred thirty-three".