205131104 has 24 divisors (see below), whose sum is σ = 404394480. Its totient is φ = 102427776.

The previous prime is 205131079. The next prime is 205131107. The reversal of 205131104 is 401131502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205131107) 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 3 ways as a sum of consecutive naturals, for example, 22442 + ... + 30230.

It is an arithmetic number, because the mean of its divisors is an integer number (16849770).

Almost surely, 2^205131104 is an apocalyptic number.

It is an amenable number.

205131104 is a deficient number, since it is larger than the sum of its proper divisors (199263376).

205131104 is an equidigital number, since it uses as much as digits as its factorization.

205131104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8622 (or 8614 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 205131104 is about 14322.3986817851. The cubic root of 205131104 is about 589.7625243654.

Adding to 205131104 its reverse (401131502), we get a palindrome (606262606).

The spelling of 205131104 in words is "two hundred five million, one hundred thirty-one thousand, one hundred four".