212534173 has 4 divisors (see below), whose sum is σ = 212666908. Its totient is φ = 212401440.

The previous prime is 212534167. The next prime is 212534177. The reversal of 212534173 is 371435212.

212534173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101062809 + 111471364 = 10053^2 + 10558^2 .

It is a cyclic number.

It is not a de Polignac number, because 212534173 - 2¹³ = 212525981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212534177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63936 + ... + 67177.

It is an arithmetic number, because the mean of its divisors is an integer number (53166727).

Almost surely, 2^212534173 is an apocalyptic number.

It is an amenable number.

212534173 is a deficient number, since it is larger than the sum of its proper divisors (132735).

212534173 is a wasteful number, since it uses less digits than its factorization.

212534173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132734.

The product of its digits is 5040, while the sum is 28.

The square root of 212534173 is about 14578.5518142235. The cubic root of 212534173 is about 596.7735824068.

Adding to 212534173 its reverse (371435212), we get a palindrome (583969385).

The spelling of 212534173 in words is "two hundred twelve million, five hundred thirty-four thousand, one hundred seventy-three".