205266641 has 4 divisors (see below), whose sum is σ = 205302372. Its totient is φ = 205230912.

The previous prime is 205266629. The next prime is 205266679. The reversal of 205266641 is 146662502.

205266641 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 can be written as a sum of positive squares in 2 ways, for example, as 18671041 + 186595600 = 4321^2 + 13660^2 .

It is a cyclic number.

It is not a de Polignac number, because 205266641 - 2¹⁴ = 205250257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205266598 and 205266607.

It is not an unprimeable number, because it can be changed into a prime (205206641) 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, 7076 + ... + 21461.

It is an arithmetic number, because the mean of its divisors is an integer number (51325593).

Almost surely, 2^205266641 is an apocalyptic number.

It is an amenable number.

205266641 is a deficient number, since it is larger than the sum of its proper divisors (35731).

205266641 is an equidigital number, since it uses as much as digits as its factorization.

205266641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35730.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 205266641 is about 14327.1295450275. The cubic root of 205266641 is about 589.8923877276.

The spelling of 205266641 in words is "two hundred five million, two hundred sixty-six thousand, six hundred forty-one".