194122075297 has 2 divisors, whose sum is σ = 194122075298. Its totient is φ = 194122075296.

The previous prime is 194122075249. The next prime is 194122075391. The reversal of 194122075297 is 792570221491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148175724096 + 45946351201 = 384936^2 + 214351^2 .

It is an emirp because it is prime and its reverse (792570221491) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194122075297 is a prime.

It is a super-2 number, since 2×194122075297² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 194122075297.

It is not a weakly prime, because it can be changed into another prime (194122075247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97061037648 + 97061037649.

It is an arithmetic number, because the mean of its divisors is an integer number (97061037649).

Almost surely, 2^194122075297 is an apocalyptic number.

It is an amenable number.

194122075297 is a deficient number, since it is larger than the sum of its proper divisors (1).

194122075297 is an equidigital number, since it uses as much as digits as its factorization.

194122075297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 194122075297 in words is "one hundred ninety-four billion, one hundred twenty-two million, seventy-five thousand, two hundred ninety-seven".