206140265 has 16 divisors (see below), whose sum is σ = 256614480. Its totient is φ = 158780160.

The previous prime is 206140241. The next prime is 206140271. The reversal of 206140265 is 562041602.

206140265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 12902464 + 193237801 = 3592^2 + 13901^2 .

It is not a de Polignac number, because 206140265 - 2¹⁸ = 205878121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55775 + ... + 59355.

It is an arithmetic number, because the mean of its divisors is an integer number (16038405).

Almost surely, 2^206140265 is an apocalyptic number.

It is an amenable number.

206140265 is a deficient number, since it is larger than the sum of its proper divisors (50474215).

206140265 is a wasteful number, since it uses less digits than its factorization.

206140265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 206140265 is about 14357.5856257241. The cubic root of 206140265 is about 590.7280727329.

Adding to 206140265 its reverse (562041602), we get a palindrome (768181867).

The spelling of 206140265 in words is "two hundred six million, one hundred forty thousand, two hundred sixty-five".