242540354207 has 2 divisors, whose sum is σ = 242540354208. Its totient is φ = 242540354206.

The previous prime is 242540354171. The next prime is 242540354291. The reversal of 242540354207 is 702453045242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242540354207 - 2²⁸ = 242271918751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242540357207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121270177103 + 121270177104.

It is an arithmetic number, because the mean of its divisors is an integer number (121270177104).

Almost surely, 2^242540354207 is an apocalyptic number.

242540354207 is a deficient number, since it is larger than the sum of its proper divisors (1).

242540354207 is an equidigital number, since it uses as much as digits as its factorization.

242540354207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 268800, while the sum is 38.

Adding to 242540354207 its reverse (702453045242), we get a palindrome (944993399449).

The spelling of 242540354207 in words is "two hundred forty-two billion, five hundred forty million, three hundred fifty-four thousand, two hundred seven".