206212134 has 8 divisors (see below), whose sum is σ = 412424280. Its totient is φ = 68737376.

The previous prime is 206212129. The next prime is 206212157. The reversal of 206212134 is 431212602.

206212134 is nontrivially palindromic in base 5.

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

206212134 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 206212134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17184339 + ... + 17184350.

It is an arithmetic number, because the mean of its divisors is an integer number (51553035).

Almost surely, 2^206212134 is an apocalyptic number.

206212134 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.

206212134 is a wasteful number, since it uses less digits than its factorization.

206212134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34368694.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 206212134 is about 14360.0882309267. The cubic root of 206212134 is about 590.7967154811.

Adding to 206212134 its reverse (431212602), we get a palindrome (637424736).

It can be divided in two parts, 2062 and 12134, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 206212134 in words is "two hundred six million, two hundred twelve thousand, one hundred thirty-four".