212058 has 80 divisors (see below), whose sum is σ = 627264. Its totient is φ = 51840.

The previous prime is 212057. The next prime is 212081. The reversal of 212058 is 850212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212058.

It is not an unprimeable number, because it can be changed into a prime (212057) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12466 + ... + 12482.

2²¹²⁰⁵⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313632).

212058 is an abundant number, since it is smaller than the sum of its proper divisors (415206).

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

212058 is a wasteful number, since it uses less digits than its factorization.

212058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 212058 is about 460.4975569968. The cubic root of 212058 is about 59.6327567932.

212058 divided by its sum of digits (18) gives a triangular number (11781 = T₁₅₃).

The spelling of 212058 in words is "two hundred twelve thousand, fifty-eight".