210441961 has 2 divisors, whose sum is σ = 210441962. Its totient is φ = 210441960.

The previous prime is 210441949. The next prime is 210442007. The reversal of 210441961 is 169144012.

210441961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206094736 + 4347225 = 14356^2 + 2085^2 .

It is a cyclic number.

It is not a de Polignac number, because 210441961 - 2¹⁷ = 210310889 is a prime.

It is not a weakly prime, because it can be changed into another prime (210441461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105220980 + 105220981.

It is an arithmetic number, because the mean of its divisors is an integer number (105220981).

Almost surely, 2^210441961 is an apocalyptic number.

It is an amenable number.

210441961 is a deficient number, since it is larger than the sum of its proper divisors (1).

210441961 is an equidigital number, since it uses as much as digits as its factorization.

210441961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 210441961 is about 14506.6178346298. The cubic root of 210441961 is about 594.8088843156.

Adding to 210441961 its reverse (169144012), we get a palindrome (379585973).

It can be divided in two parts, 21044 and 1961, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 210441961 in words is "two hundred ten million, four hundred forty-one thousand, nine hundred sixty-one".