242140606453 has 2 divisors, whose sum is σ = 242140606454. Its totient is φ = 242140606452.

The previous prime is 242140606441. The next prime is 242140606567. The reversal of 242140606453 is 354606041242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223306337809 + 18834268644 = 472553^2 + 137238^2 .

It is a cyclic number.

It is not a de Polignac number, because 242140606453 - 2¹³ = 242140598261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242140606403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121070303226 + 121070303227.

It is an arithmetic number, because the mean of its divisors is an integer number (121070303227).

Almost surely, 2^242140606453 is an apocalyptic number.

It is an amenable number.

242140606453 is a deficient number, since it is larger than the sum of its proper divisors (1).

242140606453 is an equidigital number, since it uses as much as digits as its factorization.

242140606453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 242140606453 its reverse (354606041242), we get a palindrome (596746647695).

The spelling of 242140606453 in words is "two hundred forty-two billion, one hundred forty million, six hundred six thousand, four hundred fifty-three".