213165012 has 48 divisors (see below), whose sum is σ = 520732800. Its totient is φ = 67740288.

The previous prime is 213165011. The next prime is 213165041. The reversal of 213165012 is 210561312.

213165012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 213165012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213165011) 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, 95218 + ... + 97430.

It is an arithmetic number, because the mean of its divisors is an integer number (10848600).

Almost surely, 2^213165012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213165012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260366400).

213165012 is an abundant number, since it is smaller than the sum of its proper divisors (307567788).

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

213165012 is a wasteful number, since it uses less digits than its factorization.

213165012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592 (or 2590 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 213165012 is about 14600.1716428267. The cubic root of 213165012 is about 597.3634423543.

The spelling of 213165012 in words is "two hundred thirteen million, one hundred sixty-five thousand, twelve".