211000605 has 32 divisors (see below), whose sum is σ = 357795840. Its totient is φ = 105883200.

The previous prime is 211000541. The next prime is 211000609. The reversal of 211000605 is 506000112.

It is not a de Polignac number, because 211000605 - 2⁶ = 211000541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211000609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40584 + ... + 45486.

It is an arithmetic number, because the mean of its divisors is an integer number (11181120).

Almost surely, 2^211000605 is an apocalyptic number.

It is an amenable number.

211000605 is a deficient number, since it is larger than the sum of its proper divisors (146795235).

211000605 is a wasteful number, since it uses less digits than its factorization.

211000605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5081.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 211000605 is about 14525.8598712778. The cubic root of 211000605 is about 595.3347503136.

Adding to 211000605 its reverse (506000112), we get a palindrome (717000717).

The spelling of 211000605 in words is "two hundred eleven million, six hundred five", and thus it is an aban number.