206436241 has 4 divisors (see below), whose sum is σ = 225203184. Its totient is φ = 187669300.

The previous prime is 206436203. The next prime is 206436259. The reversal of 206436241 is 142634602.

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 206436241 - 2⁹ = 206435729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206436541) 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, 9383455 + ... + 9383476.

It is an arithmetic number, because the mean of its divisors is an integer number (56300796).

Almost surely, 2^206436241 is an apocalyptic number.

It is an amenable number.

206436241 is a deficient number, since it is larger than the sum of its proper divisors (18766943).

206436241 is a wasteful number, since it uses less digits than its factorization.

206436241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18766942.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 206436241 is about 14367.8892325908. The cubic root of 206436241 is about 591.0106598016.

The spelling of 206436241 in words is "two hundred six million, four hundred thirty-six thousand, two hundred forty-one".