242241647 has 2 divisors, whose sum is σ = 242241648. Its totient is φ = 242241646.

The previous prime is 242241631. The next prime is 242241707. The reversal of 242241647 is 746142242.

242241647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242241647 - 2⁴ = 242241631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242241607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121120823 + 121120824.

It is an arithmetic number, because the mean of its divisors is an integer number (121120824).

Almost surely, 2^242241647 is an apocalyptic number.

242241647 is a deficient number, since it is larger than the sum of its proper divisors (1).

242241647 is an equidigital number, since it uses as much as digits as its factorization.

242241647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 32.

The square root of 242241647 is about 15564.1140769399. The cubic root of 242241647 is about 623.3753190920.

Adding to 242241647 its reverse (746142242), we get a palindrome (988383889).

The spelling of 242241647 in words is "two hundred forty-two million, two hundred forty-one thousand, six hundred forty-seven".