242297169553 has 2 divisors, whose sum is σ = 242297169554. Its totient is φ = 242297169552.

The previous prime is 242297169511. The next prime is 242297169601. The reversal of 242297169553 is 355961792242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210210329169 + 32086840384 = 458487^2 + 179128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242297169553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242297169494 and 242297169503.

It is not a weakly prime, because it can be changed into another prime (242297169853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121148584776 + 121148584777.

It is an arithmetic number, because the mean of its divisors is an integer number (121148584777).

Almost surely, 2^242297169553 is an apocalyptic number.

It is an amenable number.

242297169553 is a deficient number, since it is larger than the sum of its proper divisors (1).

242297169553 is an equidigital number, since it uses as much as digits as its factorization.

242297169553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 55.

The spelling of 242297169553 in words is "two hundred forty-two billion, two hundred ninety-seven million, one hundred sixty-nine thousand, five hundred fifty-three".