205020241 has 4 divisors (see below), whose sum is σ = 215810800. Its totient is φ = 194229684.

The previous prime is 205020223. The next prime is 205020269. The reversal of 205020241 is 142020502.

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 a cyclic number.

It is not a de Polignac number, because 205020241 - 2⁷ = 205020113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205020341) 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, 5395251 + ... + 5395288.

It is an arithmetic number, because the mean of its divisors is an integer number (53952700).

Almost surely, 2^205020241 is an apocalyptic number.

It is an amenable number.

205020241 is a deficient number, since it is larger than the sum of its proper divisors (10790559).

205020241 is a wasteful number, since it uses less digits than its factorization.

205020241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10790558.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 205020241 is about 14318.5278922101. The cubic root of 205020241 is about 589.6562596016.

Adding to 205020241 its reverse (142020502), we get a palindrome (347040743).

The spelling of 205020241 in words is "two hundred five million, twenty thousand, two hundred forty-one".