1240241 has 2 divisors, whose sum is σ = 1240242. Its totient is φ = 1240240.

The previous prime is 1240231. The next prime is 1240247. The reversal of 1240241 is 1420421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 960400 + 279841 = 980^2 + 529^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240241 - 2¹⁴ = 1223857 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1240247) 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 as a sum of consecutive naturals, namely, 620120 + 620121.

It is an arithmetic number, because the mean of its divisors is an integer number (620121).

2^1240241 is an apocalyptic number.

It is an amenable number.

1240241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240241 is an equidigital number, since it uses as much as digits as its factorization.

1240241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1240241 is about 1113.6610795031. The cubic root of 1240241 is about 107.4406667350.

Adding to 1240241 its reverse (1420421), we get a palindrome (2660662).

The spelling of 1240241 in words is "one million, two hundred forty thousand, two hundred forty-one".