205195359 has 4 divisors (see below), whose sum is σ = 273593816. Its totient is φ = 136796904.

The previous prime is 205195357. The next prime is 205195363. The reversal of 205195359 is 953591502.

205195359 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.

It is not a de Polignac number, because 205195359 - 2¹ = 205195357 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 (205195357) 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, 34199224 + ... + 34199229.

It is an arithmetic number, because the mean of its divisors is an integer number (68398454).

Almost surely, 2^205195359 is an apocalyptic number.

205195359 is a deficient number, since it is larger than the sum of its proper divisors (68398457).

205195359 is an equidigital number, since it uses as much as digits as its factorization.

205195359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68398456.

The product of its (nonzero) digits is 60750, while the sum is 39.

The square root of 205195359 is about 14324.6416709110. The cubic root of 205195359 is about 589.8240967521.

It can be divided in two parts, 20519 and 5359, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 205195359 in words is "two hundred five million, one hundred ninety-five thousand, three hundred fifty-nine".