194016149 has 2 divisors, whose sum is σ = 194016150. Its totient is φ = 194016148.

The previous prime is 194016143. The next prime is 194016161. The reversal of 194016149 is 941610491.

194016149 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., 179077924 + 14938225 = 13382^2 + 3865^2 .

It is a cyclic number.

It is not a de Polignac number, because 194016149 - 2⁴ = 194016133 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194016143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97008074 + 97008075.

It is an arithmetic number, because the mean of its divisors is an integer number (97008075).

Almost surely, 2^194016149 is an apocalyptic number.

It is an amenable number.

194016149 is a deficient number, since it is larger than the sum of its proper divisors (1).

194016149 is an equidigital number, since it uses as much as digits as its factorization.

194016149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 194016149 is about 13928.9679804356. The cubic root of 194016149 is about 578.9120996336.

The spelling of 194016149 in words is "one hundred ninety-four million, sixteen thousand, one hundred forty-nine".