205065132 has 12 divisors (see below), whose sum is σ = 478485336. Its totient is φ = 68355040.

The previous prime is 205065127. The next prime is 205065139. The reversal of 205065132 is 231560502.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (205065139) 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 3 ways as a sum of consecutive naturals, for example, 8544369 + ... + 8544392.

It is an arithmetic number, because the mean of its divisors is an integer number (39873778).

Almost surely, 2^205065132 is an apocalyptic number.

It is an amenable number.

205065132 is an abundant number, since it is smaller than the sum of its proper divisors (273420204).

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

205065132 is a wasteful number, since it uses less digits than its factorization.

205065132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17088768 (or 17088766 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 205065132 is about 14320.0953907437. The cubic root of 205065132 is about 589.6992932833.

The spelling of 205065132 in words is "two hundred five million, sixty-five thousand, one hundred thirty-two".