205304273 has 2 divisors, whose sum is σ = 205304274. Its totient is φ = 205304272.

The previous prime is 205304243. The next prime is 205304299. The reversal of 205304273 is 372403502.

205304273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (205304299) can be obtained adding 205304273 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201980944 + 3323329 = 14212^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 205304273 - 2⁸ = 205304017 is a prime.

It is not a weakly prime, because it can be changed into another prime (205304243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102652136 + 102652137.

It is an arithmetic number, because the mean of its divisors is an integer number (102652137).

Almost surely, 2^205304273 is an apocalyptic number.

It is an amenable number.

205304273 is a deficient number, since it is larger than the sum of its proper divisors (1).

205304273 is an equidigital number, since it uses as much as digits as its factorization.

205304273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 205304273 is about 14328.4427974571. The cubic root of 205304273 is about 589.9284342957.

Adding to 205304273 its reverse (372403502), we get a palindrome (577707775).

The spelling of 205304273 in words is "two hundred five million, three hundred four thousand, two hundred seventy-three".