193000121 has 2 divisors, whose sum is σ = 193000122. Its totient is φ = 193000120.

The previous prime is 193000019. The next prime is 193000123. The reversal of 193000121 is 121000391.

It is a happy number.

193000121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101223721 + 91776400 = 10061^2 + 9580^2 .

It is an emirp because it is prime and its reverse (121000391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 193000121 - 2¹⁰ = 192999097 is a prime.

Together with 193000123, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 193000121.

It is not a weakly prime, because it can be changed into another prime (193000123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96500060 + 96500061.

It is an arithmetic number, because the mean of its divisors is an integer number (96500061).

Almost surely, 2^193000121 is an apocalyptic number.

It is an amenable number.

193000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

193000121 is an equidigital number, since it uses as much as digits as its factorization.

193000121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 193000121 is about 13892.4483443344. The cubic root of 193000121 is about 577.8997772852.

The spelling of 193000121 in words is "one hundred ninety-three million, one hundred twenty-one", and thus it is an aban number.