241404209 has 2 divisors, whose sum is σ = 241404210. Its totient is φ = 241404208.

The previous prime is 241404197. The next prime is 241404217. The reversal of 241404209 is 902404142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202066225 + 39337984 = 14215^2 + 6272^2 .

It is a cyclic number.

It is not a de Polignac number, because 241404209 - 2¹² = 241400113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (241404809) 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 as a sum of consecutive naturals, namely, 120702104 + 120702105.

It is an arithmetic number, because the mean of its divisors is an integer number (120702105).

Almost surely, 2^241404209 is an apocalyptic number.

It is an amenable number.

241404209 is a deficient number, since it is larger than the sum of its proper divisors (1).

241404209 is an equidigital number, since it uses as much as digits as its factorization.

241404209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 241404209 is about 15537.1879373328. The cubic root of 241404209 is about 622.6561461598.

The spelling of 241404209 in words is "two hundred forty-one million, four hundred four thousand, two hundred nine".