205112006 has 16 divisors (see below), whose sum is σ = 336130560. Its totient is φ = 93095880.

The previous prime is 205112003. The next prime is 205112023. The reversal of 205112006 is 600211502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205112003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9335 + ... + 22301.

It is an arithmetic number, because the mean of its divisors is an integer number (21008160).

Almost surely, 2^205112006 is an apocalyptic number.

205112006 is a deficient number, since it is larger than the sum of its proper divisors (131018554).

205112006 is a wasteful number, since it uses less digits than its factorization.

205112006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13699.

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

The square root of 205112006 is about 14321.7319483364. The cubic root of 205112006 is about 589.7442212184.

Adding to 205112006 its reverse (600211502), we get a palindrome (805323508).

It can be divided in two parts, 205 and 112006, that added together give a palindrome (112211).

The spelling of 205112006 in words is "two hundred five million, one hundred twelve thousand, six".