205531134 has 8 divisors (see below), whose sum is σ = 411062280. Its totient is φ = 68510376.

The previous prime is 205531121. The next prime is 205531153. The reversal of 205531134 is 431135502.

205531134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

205531134 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17127589 + ... + 17127600.

It is an arithmetic number, because the mean of its divisors is an integer number (51382785).

Almost surely, 2^205531134 is an apocalyptic number.

205531134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

205531134 is a wasteful number, since it uses less digits than its factorization.

205531134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34255194.

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

The square root of 205531134 is about 14336.3570686559. The cubic root of 205531134 is about 590.1456444041.

Adding to 205531134 its reverse (431135502), we get a palindrome (636666636).

The spelling of 205531134 in words is "two hundred five million, five hundred thirty-one thousand, one hundred thirty-four".