206247941 has 4 divisors (see below), whose sum is σ = 206399532. Its totient is φ = 206096352.

The previous prime is 206247931. The next prime is 206247967. The reversal of 206247941 is 149742602.

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 105165025 + 101082916 = 10255^2 + 10054^2 .

It is a cyclic number.

It is not a de Polignac number, because 206247941 - 2¹⁸ = 205985797 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 (206247931) 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, 73736 + ... + 76481.

It is an arithmetic number, because the mean of its divisors is an integer number (51599883).

Almost surely, 2^206247941 is an apocalyptic number.

It is an amenable number.

206247941 is a deficient number, since it is larger than the sum of its proper divisors (151591).

206247941 is a wasteful number, since it uses less digits than its factorization.

206247941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151590.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 206247941 is about 14361.3349309874. The cubic root of 206247941 is about 590.8309091264.

The spelling of 206247941 in words is "two hundred six million, two hundred forty-seven thousand, nine hundred forty-one".