206310146 has 16 divisors (see below), whose sum is σ = 365084160. Its totient is φ = 85566240.

The previous prime is 206310127. The next prime is 206310157. The reversal of 206310146 is 641013602.

It is a happy number.

It is a Curzon 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, 237251 + ... + 238118.

It is an arithmetic number, because the mean of its divisors is an integer number (22817760).

Almost surely, 2^206310146 is an apocalyptic number.

206310146 is a deficient number, since it is larger than the sum of its proper divisors (158774014).

206310146 is a wasteful number, since it uses less digits than its factorization.

206310146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475409.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 206310146 is about 14363.5004786438. The cubic root of 206310146 is about 590.8903019495.

Adding to 206310146 its reverse (641013602), we get a palindrome (847323748).

The spelling of 206310146 in words is "two hundred six million, three hundred ten thousand, one hundred forty-six".