206656134 has 8 divisors (see below), whose sum is σ = 413312280. Its totient is φ = 68885376.

The previous prime is 206656057. The next prime is 206656159. The reversal of 206656134 is 431656602.

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

206656134 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 206656095 and 206656104.

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, 17221339 + ... + 17221350.

It is an arithmetic number, because the mean of its divisors is an integer number (51664035).

Almost surely, 2^206656134 is an apocalyptic number.

206656134 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.

206656134 is a wasteful number, since it uses less digits than its factorization.

206656134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34442694.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 206656134 is about 14375.5394333569. The cubic root of 206656134 is about 591.2204307704.

The spelling of 206656134 in words is "two hundred six million, six hundred fifty-six thousand, one hundred thirty-four".