212107134 has 8 divisors (see below), whose sum is σ = 424214280. Its totient is φ = 70702376.

The previous prime is 212107067. The next prime is 212107139. The reversal of 212107134 is 431701212.

It is a sphenic number, since it is the product of 3 distinct primes.

212107134 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 212107134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212107139) 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, 17675589 + ... + 17675600.

It is an arithmetic number, because the mean of its divisors is an integer number (53026785).

Almost surely, 2^212107134 is an apocalyptic number.

212107134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

212107134 is a wasteful number, since it uses less digits than its factorization.

212107134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35351194.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 212107134 is about 14563.8983105486. The cubic root of 212107134 is about 596.3736208920.

Adding to 212107134 its reverse (431701212), we get a palindrome (643808346).

The spelling of 212107134 in words is "two hundred twelve million, one hundred seven thousand, one hundred thirty-four".