241105721 has 2 divisors, whose sum is σ = 241105722. Its totient is φ = 241105720.

The previous prime is 241105637. The next prime is 241105751. The reversal of 241105721 is 127501142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232135696 + 8970025 = 15236^2 + 2995^2 .

It is a cyclic number.

It is not a de Polignac number, because 241105721 - 2²⁶ = 173996857 is a prime.

It is not a weakly prime, because it can be changed into another prime (241105751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120552860 + 120552861.

It is an arithmetic number, because the mean of its divisors is an integer number (120552861).

Almost surely, 2^241105721 is an apocalyptic number.

It is an amenable number.

241105721 is a deficient number, since it is larger than the sum of its proper divisors (1).

241105721 is an equidigital number, since it uses as much as digits as its factorization.

241105721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 241105721 is about 15527.5793670488. The cubic root of 241105721 is about 622.3994093470.

Adding to 241105721 its reverse (127501142), we get a palindrome (368606863).

The spelling of 241105721 in words is "two hundred forty-one million, one hundred five thousand, seven hundred twenty-one".