206226961 has 4 divisors (see below), whose sum is σ = 206275300. Its totient is φ = 206178624.

The previous prime is 206226959. The next prime is 206226991. The reversal of 206226961 is 169622602.

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 7952400 + 198274561 = 2820^2 + 14081^2 .

It is a cyclic number.

It is not a de Polignac number, because 206226961 - 2¹ = 206226959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206226941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17076 + ... + 26533.

It is an arithmetic number, because the mean of its divisors is an integer number (51568825).

Almost surely, 2^206226961 is an apocalyptic number.

It is an amenable number.

206226961 is a deficient number, since it is larger than the sum of its proper divisors (48339).

206226961 is an equidigital number, since it uses as much as digits as its factorization.

206226961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48338.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 206226961 is about 14360.6044789208. The cubic root of 206226961 is about 590.8108749016.

The spelling of 206226961 in words is "two hundred six million, two hundred twenty-six thousand, nine hundred sixty-one".