199741 has 2 divisors, whose sum is σ = 199742. Its totient is φ = 199740.

The previous prime is 199739. The next prime is 199751. The reversal of 199741 is 147991.

199741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177241 + 22500 = 421^2 + 150^2 .

It is a cyclic number.

It is not a de Polignac number, because 199741 - 2¹ = 199739 is a prime.

Together with 199739, it forms a pair of twin primes.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99870 + 99871.

It is an arithmetic number, because the mean of its divisors is an integer number (99871).

2¹⁹⁹⁷⁴¹ is an apocalyptic number.

It is an amenable number.

199741 is a deficient number, since it is larger than the sum of its proper divisors (1).

199741 is an equidigital number, since it uses as much as digits as its factorization.

199741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 31.

The square root of 199741 is about 446.9239308876. The cubic root of 199741 is about 58.4550998396.

The spelling of 199741 in words is "one hundred ninety-nine thousand, seven hundred forty-one".