205135672 has 16 divisors (see below), whose sum is σ = 439576560. Its totient is φ = 87915264.

The previous prime is 205135661. The next prime is 205135673. The reversal of 205135672 is 276531502.

205135672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205135673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1831513 + ... + 1831624.

It is an arithmetic number, because the mean of its divisors is an integer number (27473535).

Almost surely, 2^205135672 is an apocalyptic number.

It is an amenable number.

205135672 is an abundant number, since it is smaller than the sum of its proper divisors (234440888).

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

205135672 is a wasteful number, since it uses less digits than its factorization.

205135672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663150 (or 3663146 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 205135672 is about 14322.5581513918. The cubic root of 205135672 is about 589.7669020783.

The spelling of 205135672 in words is "two hundred five million, one hundred thirty-five thousand, six hundred seventy-two".