205113136 has 20 divisors (see below), whose sum is σ = 397660312. Its totient is φ = 102491136.

The previous prime is 205113133. The next prime is 205113157. The reversal of 205113136 is 631311502.

It is a happy number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (205113131) 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, 30775 + ... + 36841.

Almost surely, 2^205113136 is an apocalyptic number.

It is an amenable number.

205113136 is a deficient number, since it is larger than the sum of its proper divisors (192547176).

205113136 is a wasteful number, since it uses less digits than its factorization.

205113136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8188 (or 8182 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 205113136 is about 14321.7713988180. The cubic root of 205113136 is about 589.7453042198.

Adding to 205113136 its reverse (631311502), we get a palindrome (836424638).

The spelling of 205113136 in words is "two hundred five million, one hundred thirteen thousand, one hundred thirty-six".