205064306 has 4 divisors (see below), whose sum is σ = 307596462. Its totient is φ = 102532152.

The previous prime is 205064303. The next prime is 205064311. The reversal of 205064306 is 603460502.

205064306 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 603460502 = 2 ⋅301730251.

It can be written as a sum of positive squares in only one way, i.e., 151905625 + 53158681 = 12325^2 + 7291^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (205064303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51266075 + ... + 51266078.

Almost surely, 2^205064306 is an apocalyptic number.

205064306 is a deficient number, since it is larger than the sum of its proper divisors (102532156).

205064306 is a wasteful number, since it uses less digits than its factorization.

205064306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102532155.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 205064306 is about 14320.0665501247. The cubic root of 205064306 is about 589.6985015149.

The spelling of 205064306 in words is "two hundred five million, sixty-four thousand, three hundred six".