205545132 has 36 divisors (see below), whose sum is σ = 559540800. Its totient is φ = 63244512.

The previous prime is 205545083. The next prime is 205545139. The reversal of 205545132 is 231545502.

It is a happy number.

205545132 is a `hidden beast` number, since 205 + 5 + 451 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 205545096 and 205545105.

It is not an unprimeable number, because it can be changed into a prime (205545139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219132 + ... + 220067.

It is an arithmetic number, because the mean of its divisors is an integer number (15542800).

Almost surely, 2^205545132 is an apocalyptic number.

It is an amenable number.

205545132 is an abundant number, since it is smaller than the sum of its proper divisors (353995668).

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

205545132 is a wasteful number, since it uses less digits than its factorization.

205545132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439222 (or 439217 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 205545132 is about 14336.8452596797. The cubic root of 205545132 is about 590.1590416788.

The spelling of 205545132 in words is "two hundred five million, five hundred forty-five thousand, one hundred thirty-two".