206128 has 20 divisors (see below), whose sum is σ = 430528. Its totient is φ = 95040.

The previous prime is 206123. The next prime is 206153. The reversal of 206128 is 821602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (206123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288 + ... + 703.

2²⁰⁶¹²⁸ is an apocalyptic number.

It is an amenable number.

206128 is an abundant number, since it is smaller than the sum of its proper divisors (224400).

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

206128 is a wasteful number, since it uses less digits than its factorization.

206128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 206128 is about 454.0132156667. The cubic root of 206128 is about 59.0716356724.

The spelling of 206128 in words is "two hundred six thousand, one hundred twenty-eight".