194123353 has 2 divisors, whose sum is σ = 194123354. Its totient is φ = 194123352.

The previous prime is 194123351. The next prime is 194123387. The reversal of 194123353 is 353321491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104101209 + 90022144 = 10203^2 + 9488^2 .

It is a cyclic number.

It is not a de Polignac number, because 194123353 - 2¹ = 194123351 is a prime.

Together with 194123351, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (194123351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97061676 + 97061677.

It is an arithmetic number, because the mean of its divisors is an integer number (97061677).

Almost surely, 2^194123353 is an apocalyptic number.

It is an amenable number.

194123353 is a deficient number, since it is larger than the sum of its proper divisors (1).

194123353 is an equidigital number, since it uses as much as digits as its factorization.

194123353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 31.

The square root of 194123353 is about 13932.8156881515. The cubic root of 194123353 is about 579.0187063358.

The spelling of 194123353 in words is "one hundred ninety-four million, one hundred twenty-three thousand, three hundred fifty-three".