205318141 has 4 divisors (see below), whose sum is σ = 234649312. Its totient is φ = 175986972.

The previous prime is 205318133. The next prime is 205318147. The reversal of 205318141 is 141813502.

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, and also an emirpimes, since its reverse is a distinct semiprime: 141813502 = 2 ⋅70906751.

It is not a de Polignac number, because 205318141 - 2³ = 205318133 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 (205318147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14665575 + ... + 14665588.

It is an arithmetic number, because the mean of its divisors is an integer number (58662328).

Almost surely, 2^205318141 is an apocalyptic number.

It is an amenable number.

205318141 is a deficient number, since it is larger than the sum of its proper divisors (29331171).

205318141 is an equidigital number, since it uses as much as digits as its factorization.

205318141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29331170.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 205318141 is about 14328.9267218449. The cubic root of 205318141 is about 589.9417169278.

The spelling of 205318141 in words is "two hundred five million, three hundred eighteen thousand, one hundred forty-one".