241601021 has 2 divisors, whose sum is σ = 241601022. Its totient is φ = 241601020.

The previous prime is 241600973. The next prime is 241601027. The reversal of 241601021 is 120106142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196308121 + 45292900 = 14011^2 + 6730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-241601021 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241601027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120800510 + 120800511.

It is an arithmetic number, because the mean of its divisors is an integer number (120800511).

Almost surely, 2^241601021 is an apocalyptic number.

It is an amenable number.

241601021 is a deficient number, since it is larger than the sum of its proper divisors (1).

241601021 is an equidigital number, since it uses as much as digits as its factorization.

241601021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 241601021 is about 15543.5202254830. The cubic root of 241601021 is about 622.8253132094.

Adding to 241601021 its reverse (120106142), we get a palindrome (361707163).

The spelling of 241601021 in words is "two hundred forty-one million, six hundred one thousand, twenty-one".