211089193 has 16 divisors (see below), whose sum is σ = 257596416. Its totient is φ = 169036560.

The previous prime is 211089191. The next prime is 211089251. The reversal of 211089193 is 391980112.

It is not a de Polignac number, because 211089193 - 2¹ = 211089191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211089191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8323 + ... + 22168.

It is an arithmetic number, because the mean of its divisors is an integer number (16099776).

Almost surely, 2^211089193 is an apocalyptic number.

211089193 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

211089193 is a deficient number, since it is larger than the sum of its proper divisors (46507223).

211089193 is a wasteful number, since it uses less digits than its factorization.

211089193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30564.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 211089193 is about 14528.9088716256. The cubic root of 211089193 is about 595.4180551865.

The spelling of 211089193 in words is "two hundred eleven million, eighty-nine thousand, one hundred ninety-three".