205134141 has 4 divisors (see below), whose sum is σ = 273512192. Its totient is φ = 136756092.

The previous prime is 205134133. The next prime is 205134143. The reversal of 205134141 is 141431502.

205134141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 205134141 - 2³ = 205134133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205134143) 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, 34189021 + ... + 34189026.

It is an arithmetic number, because the mean of its divisors is an integer number (68378048).

Almost surely, 2^205134141 is an apocalyptic number.

It is an amenable number.

205134141 is a deficient number, since it is larger than the sum of its proper divisors (68378051).

205134141 is an equidigital number, since it uses as much as digits as its factorization.

205134141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68378050.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 205134141 is about 14322.5047041361. The cubic root of 205134141 is about 589.7654348617.

Adding to 205134141 its reverse (141431502), we get a palindrome (346565643).

The spelling of 205134141 in words is "two hundred five million, one hundred thirty-four thousand, one hundred forty-one".