205023273 has 16 divisors (see below), whose sum is σ = 336448896. Its totient is φ = 108144000.

The previous prime is 205023271. The next prime is 205023277. The reversal of 205023273 is 372320502.

It is not a de Polignac number, because 205023273 - 2¹ = 205023271 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (205023271) 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 in 15 ways as a sum of consecutive naturals, for example, 375228 + ... + 375773.

It is an arithmetic number, because the mean of its divisors is an integer number (21028056).

Almost surely, 2^205023273 is an apocalyptic number.

It is an amenable number.

205023273 is a deficient number, since it is larger than the sum of its proper divisors (131425623).

205023273 is a wasteful number, since it uses less digits than its factorization.

205023273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751024.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 205023273 is about 14318.6337686247. The cubic root of 205023273 is about 589.6591663535.

Adding to 205023273 its reverse (372320502), we get a palindrome (577343775).

The spelling of 205023273 in words is "two hundred five million, twenty-three thousand, two hundred seventy-three".