205134412 has 24 divisors (see below), whose sum is σ = 431863040. Its totient is φ = 83287440.

The previous prime is 205134383. The next prime is 205134421. The reversal of 205134412 is 214431502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192264 + ... + 193327.

Almost surely, 2^205134412 is an apocalyptic number.

It is an amenable number.

205134412 is an abundant number, since it is smaller than the sum of its proper divisors (226728628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205134412 is a wasteful number, since it uses less digits than its factorization.

205134412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385621 (or 385619 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 205134412 is about 14322.5141647687. The cubic root of 205134412 is about 589.7656945720.

Adding to 205134412 its reverse (214431502), we get a palindrome (419565914).

It can be divided in two parts, 2051 and 34412, that added together give a palindrome (36463).

The spelling of 205134412 in words is "two hundred five million, one hundred thirty-four thousand, four hundred twelve".