242265653197 has 2 divisors, whose sum is σ = 242265653198. Its totient is φ = 242265653196.

The previous prime is 242265653191. The next prime is 242265653239. The reversal of 242265653197 is 791356562242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238709439241 + 3556213956 = 488579^2 + 59634^2 .

It is a cyclic number.

It is not a de Polignac number, because 242265653197 - 2¹⁹ = 242265128909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242265653191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121132826598 + 121132826599.

It is an arithmetic number, because the mean of its divisors is an integer number (121132826599).

Almost surely, 2^242265653197 is an apocalyptic number.

It is an amenable number.

242265653197 is a deficient number, since it is larger than the sum of its proper divisors (1).

242265653197 is an equidigital number, since it uses as much as digits as its factorization.

242265653197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 52.

The spelling of 242265653197 in words is "two hundred forty-two billion, two hundred sixty-five million, six hundred fifty-three thousand, one hundred ninety-seven".