193734641 has 2 divisors, whose sum is σ = 193734642. Its totient is φ = 193734640.

The previous prime is 193734637. The next prime is 193734643. The reversal of 193734641 is 146437391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189750625 + 3984016 = 13775^2 + 1996^2 .

It is an emirp because it is prime and its reverse (146437391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 193734641 - 2² = 193734637 is a prime.

It is a super-2 number, since 2×193734641² = 75066222246797762, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 193734643, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 193734595 and 193734604.

It is not a weakly prime, because it can be changed into another prime (193734643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96867320 + 96867321.

It is an arithmetic number, because the mean of its divisors is an integer number (96867321).

Almost surely, 2^193734641 is an apocalyptic number.

It is an amenable number.

193734641 is a deficient number, since it is larger than the sum of its proper divisors (1).

193734641 is an equidigital number, since it uses as much as digits as its factorization.

193734641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 193734641 is about 13918.8591845740. The cubic root of 193734641 is about 578.6319730024.

The spelling of 193734641 in words is "one hundred ninety-three million, seven hundred thirty-four thousand, six hundred forty-one".