194011841 has 2 divisors, whose sum is σ = 194011842. Its totient is φ = 194011840.

The previous prime is 194011823. The next prime is 194011843. The reversal of 194011841 is 148110491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148840000 + 45171841 = 12200^2 + 6721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194011841 is a prime.

Together with 194011843, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (194011843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97005920 + 97005921.

It is an arithmetic number, because the mean of its divisors is an integer number (97005921).

Almost surely, 2^194011841 is an apocalyptic number.

It is an amenable number.

194011841 is a deficient number, since it is larger than the sum of its proper divisors (1).

194011841 is an equidigital number, since it uses as much as digits as its factorization.

194011841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 194011841 is about 13928.8133378260. The cubic root of 194011841 is about 578.9078148154.

The spelling of 194011841 in words is "one hundred ninety-four million, eleven thousand, eight hundred forty-one".