206122134 has 16 divisors (see below), whose sum is σ = 421831872. Its totient is φ = 67109448.

The previous prime is 206122031. The next prime is 206122151. The reversal of 206122134 is 431221602.

It is a self number, because there is not a number n which added to its sum of digits gives 206122134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399204 + ... + 399719.

It is an arithmetic number, because the mean of its divisors is an integer number (26364492).

Almost surely, 2^206122134 is an apocalyptic number.

206122134 is an abundant number, since it is smaller than the sum of its proper divisors (215709738).

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

206122134 is a wasteful number, since it uses less digits than its factorization.

206122134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798971.

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

The square root of 206122134 is about 14356.9542034514. The cubic root of 206122134 is about 590.7107531265.

Adding to 206122134 its reverse (431221602), we get a palindrome (637343736).

The spelling of 206122134 in words is "two hundred six million, one hundred twenty-two thousand, one hundred thirty-four".