206851441 has 4 divisors (see below), whose sum is σ = 206890992. Its totient is φ = 206811892.

The previous prime is 206851409. The next prime is 206851451. The reversal of 206851441 is 144158602.

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 206851441 - 2⁵ = 206851409 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206851451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10471 + ... + 22876.

It is an arithmetic number, because the mean of its divisors is an integer number (51722748).

Almost surely, 2^206851441 is an apocalyptic number.

It is an amenable number.

206851441 is a deficient number, since it is larger than the sum of its proper divisors (39551).

206851441 is an equidigital number, since it uses as much as digits as its factorization.

206851441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39550.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 206851441 is about 14382.3308611643. The cubic root of 206851441 is about 591.4066227300.

The spelling of 206851441 in words is "two hundred six million, eight hundred fifty-one thousand, four hundred forty-one".