140242241 has 2 divisors, whose sum is σ = 140242242. Its totient is φ = 140242240.

The previous prime is 140242217. The next prime is 140242261. The reversal of 140242241 is 142242041.

140242241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (140242261) can be obtained adding 140242241 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97614400 + 42627841 = 9880^2 + 6529^2 .

It is a cyclic number.

It is not a de Polignac number, because 140242241 - 2²² = 136047937 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 (140242261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70121120 + 70121121.

It is an arithmetic number, because the mean of its divisors is an integer number (70121121).

Almost surely, 2^140242241 is an apocalyptic number.

It is an amenable number.

140242241 is a deficient number, since it is larger than the sum of its proper divisors (1).

140242241 is an equidigital number, since it uses as much as digits as its factorization.

140242241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 140242241 is about 11842.3916925594. The cubic root of 140242241 is about 519.5487221342.

Adding to 140242241 its reverse (142242041), we get a palindrome (282484282).

The spelling of 140242241 in words is "one hundred forty million, two hundred forty-two thousand, two hundred forty-one".