211149075 has 24 divisors (see below), whose sum is σ = 351781056. Its totient is φ = 111748000.

The previous prime is 211149041. The next prime is 211149083. The reversal of 211149075 is 570941112.

It is not a de Polignac number, because 211149075 - 2⁹ = 211148563 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 921 + ... + 20570.

It is an arithmetic number, because the mean of its divisors is an integer number (14657544).

Almost surely, 2^211149075 is an apocalyptic number.

211149075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

211149075 is a deficient number, since it is larger than the sum of its proper divisors (140631981).

211149075 is a wasteful number, since it uses less digits than its factorization.

211149075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21635 (or 21630 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 211149075 is about 14530.9695134220. The cubic root of 211149075 is about 595.4743527994.

The spelling of 211149075 in words is "two hundred eleven million, one hundred forty-nine thousand, seventy-five".