12193395161 has 2 divisors, whose sum is σ = 12193395162. Its totient is φ = 12193395160.

The previous prime is 12193395157. The next prime is 12193395209. The reversal of 12193395161 is 16159339121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12046379536 + 147015625 = 109756^2 + 12125^2 .

It is an emirp because it is prime and its reverse (16159339121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12193395161 - 2² = 12193395157 is a prime.

It is not a weakly prime, because it can be changed into another prime (12193395661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6096697580 + 6096697581.

It is an arithmetic number, because the mean of its divisors is an integer number (6096697581).

Almost surely, 2^12193395161 is an apocalyptic number.

It is an amenable number.

12193395161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12193395161 is an equidigital number, since it uses as much as digits as its factorization.

12193395161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 41.

The spelling of 12193395161 in words is "twelve billion, one hundred ninety-three million, three hundred ninety-five thousand, one hundred sixty-one".