206140234 has 8 divisors (see below), whose sum is σ = 325484640. Its totient is φ = 97645356.

The previous prime is 206140223. The next prime is 206140241. The reversal of 206140234 is 432041602.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2712334 + ... + 2712409.

It is an arithmetic number, because the mean of its divisors is an integer number (40685580).

Almost surely, 2^206140234 is an apocalyptic number.

206140234 is a deficient number, since it is larger than the sum of its proper divisors (119344406).

206140234 is a wasteful number, since it uses less digits than its factorization.

206140234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5424764.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 206140234 is about 14357.5845461554. The cubic root of 206140234 is about 590.7280431210.

Adding to 206140234 its reverse (432041602), we get a palindrome (638181836).

The spelling of 206140234 in words is "two hundred six million, one hundred forty thousand, two hundred thirty-four".