205441393 has 4 divisors (see below), whose sum is σ = 205514740. Its totient is φ = 205368048.

The previous prime is 205441367. The next prime is 205441417. The reversal of 205441393 is 393144502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 172344384 + 33097009 = 13128^2 + 5753^2 .

It is a cyclic number.

It is not a de Polignac number, because 205441393 - 2⁵ = 205441361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205441333) 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, 32298 + ... + 38131.

It is an arithmetic number, because the mean of its divisors is an integer number (51378685).

Almost surely, 2^205441393 is an apocalyptic number.

It is an amenable number.

205441393 is a deficient number, since it is larger than the sum of its proper divisors (73347).

205441393 is an equidigital number, since it uses as much as digits as its factorization.

205441393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73346.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 205441393 is about 14333.2268872016. The cubic root of 205441393 is about 590.0597401923.

Adding to 205441393 its reverse (393144502), we get a palindrome (598585895).

The spelling of 205441393 in words is "two hundred five million, four hundred forty-one thousand, three hundred ninety-three".