213026172 has 24 divisors (see below), whose sum is σ = 513096192. Its totient is φ = 68718000.

The previous prime is 213026159. The next prime is 213026173. The reversal of 213026172 is 271620312.

213026172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213026173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285954 + ... + 286697.

It is an arithmetic number, because the mean of its divisors is an integer number (21379008).

Almost surely, 2^213026172 is an apocalyptic number.

It is an amenable number.

213026172 is an abundant number, since it is smaller than the sum of its proper divisors (300070020).

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

213026172 is a wasteful number, since it uses less digits than its factorization.

213026172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572689 (or 572687 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 213026172 is about 14595.4161297306. The cubic root of 213026172 is about 597.2337213264.

Adding to 213026172 its reverse (271620312), we get a palindrome (484646484).

The spelling of 213026172 in words is "two hundred thirteen million, twenty-six thousand, one hundred seventy-two".