205205234 has 16 divisors (see below), whose sum is σ = 332871000. Its totient is φ = 94314240.

The previous prime is 205205233. The next prime is 205205237. The reversal of 205205234 is 432502502.

It can be written as a sum of positive squares in 4 ways, for example, as 142874209 + 62331025 = 11953^2 + 7895^2 .

It is not an unprimeable number, because it can be changed into a prime (205205233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10109 + ... + 22640.

Almost surely, 2^205205234 is an apocalyptic number.

205205234 is a deficient number, since it is larger than the sum of its proper divisors (127665766).

205205234 is a wasteful number, since it uses less digits than its factorization.

205205234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33005.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 205205234 is about 14324.9863525240. The cubic root of 205205234 is about 589.8335583363.

Adding to 205205234 its reverse (432502502), we get a palindrome (637707736).

The spelling of 205205234 in words is "two hundred five million, two hundred five thousand, two hundred thirty-four".