193830317 has 2 divisors, whose sum is σ = 193830318. Its totient is φ = 193830316.

The previous prime is 193830251. The next prime is 193830319. The reversal of 193830317 is 713038391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127554436 + 66275881 = 11294^2 + 8141^2 .

It is a cyclic number.

It is not a de Polignac number, because 193830317 - 2⁸ = 193830061 is a prime.

Together with 193830319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193830319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96915158 + 96915159.

It is an arithmetic number, because the mean of its divisors is an integer number (96915159).

Almost surely, 2^193830317 is an apocalyptic number.

It is an amenable number.

193830317 is a deficient number, since it is larger than the sum of its proper divisors (1).

193830317 is an equidigital number, since it uses as much as digits as its factorization.

193830317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 193830317 is about 13922.2956799516. The cubic root of 193830317 is about 578.7272099400.

The spelling of 193830317 in words is "one hundred ninety-three million, eight hundred thirty thousand, three hundred seventeen".