211158 has 12 divisors (see below), whose sum is σ = 457548. Its totient is φ = 70380.

The previous prime is 211153. The next prime is 211177. The reversal of 211158 is 851112.

211158 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11731 = 211158 / (2 + 1 + 1 + 1 + 5 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 211158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211151) by changing a digit.

211158 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5848 + ... + 5883.

It is an arithmetic number, because the mean of its divisors is an integer number (38129).

2²¹¹¹⁵⁸ is an apocalyptic number.

211158 is an abundant number, since it is smaller than the sum of its proper divisors (246390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211158 is a wasteful number, since it uses less digits than its factorization.

211158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11739 (or 11736 counting only the distinct ones).

The product of its digits is 80, while the sum is 18.

The square root of 211158 is about 459.5193140663. The cubic root of 211158 is about 59.5482742660.

The spelling of 211158 in words is "two hundred eleven thousand, one hundred fifty-eight".