205140412 has 6 divisors (see below), whose sum is σ = 358995728. Its totient is φ = 102570204.

The previous prime is 205140391. The next prime is 205140421. The reversal of 205140412 is 214041502.

205140412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 205140412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25642548 + ... + 25642555.

Almost surely, 2^205140412 is an apocalyptic number.

It is an amenable number.

205140412 is a deficient number, since it is larger than the sum of its proper divisors (153855316).

205140412 is a wasteful number, since it uses less digits than its factorization.

205140412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51285107 (or 51285105 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 205140412 is about 14322.7236236688. The cubic root of 205140412 is about 589.7714445575.

Adding to 205140412 its reverse (214041502), we get a palindrome (419181914).

The spelling of 205140412 in words is "two hundred five million, one hundred forty thousand, four hundred twelve".