205404112 has 10 divisors (see below), whose sum is σ = 397970498. Its totient is φ = 102702048.

The previous prime is 205404107. The next prime is 205404119. The reversal of 205404112 is 211404502.

It can be written as a sum of positive squares in only one way, i.e., 182898576 + 22505536 = 13524^2 + 4744^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 205404112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205404119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6418863 + ... + 6418894.

Almost surely, 2^205404112 is an apocalyptic number.

It is an amenable number.

205404112 is a deficient number, since it is larger than the sum of its proper divisors (192566386).

205404112 is a wasteful number, since it uses less digits than its factorization.

205404112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12837765 (or 12837759 counting only the distinct ones).

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

The square root of 205404112 is about 14331.9263185379. The cubic root of 205404112 is about 590.0240457499.

Adding to 205404112 its reverse (211404502), we get a palindrome (416808614).

The spelling of 205404112 in words is "two hundred five million, four hundred four thousand, one hundred twelve".