206142873 has 16 divisors (see below), whose sum is σ = 287079360. Its totient is φ = 131443776.

The previous prime is 206142869. The next prime is 206142889. The reversal of 206142873 is 378241602.

It is not a de Polignac number, because 206142873 - 2² = 206142869 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206142803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9190 + ... + 22287.

It is an arithmetic number, because the mean of its divisors is an integer number (17942460).

Almost surely, 2^206142873 is an apocalyptic number.

It is an amenable number.

206142873 is a deficient number, since it is larger than the sum of its proper divisors (80936487).

206142873 is a wasteful number, since it uses less digits than its factorization.

206142873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31576.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 206142873 is about 14357.6764485066. The cubic root of 206142873 is about 590.7305639368.

The spelling of 206142873 in words is "two hundred six million, one hundred forty-two thousand, eight hundred seventy-three".