205135092 has 30 divisors (see below), whose sum is σ = 536264498. Its totient is φ = 68378256.

The previous prime is 205135033. The next prime is 205135093. The reversal of 205135092 is 290531502.

205135092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 198133776 + 7001316 = 14076^2 + 2646^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205135093) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 316243 + ... + 316890.

Almost surely, 2^205135092 is an apocalyptic number.

It is an amenable number.

205135092 is an abundant number, since it is smaller than the sum of its proper divisors (331129406).

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

205135092 is a wasteful number, since it uses less digits than its factorization.

205135092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633149 (or 633138 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 205135092 is about 14322.5379035980. The cubic root of 205135092 is about 589.7663462427.

Adding to 205135092 its reverse (290531502), we get a palindrome (495666594).

The spelling of 205135092 in words is "two hundred five million, one hundred thirty-five thousand, ninety-two".