201834161 has 2 divisors, whose sum is σ = 201834162. Its totient is φ = 201834160.

The previous prime is 201834119. The next prime is 201834167. The reversal of 201834161 is 161438102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145057936 + 56776225 = 12044^2 + 7535^2 .

It is a cyclic number.

It is not a de Polignac number, because 201834161 - 2¹⁸ = 201572017 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 201834161.

It is not a weakly prime, because it can be changed into another prime (201834167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100917080 + 100917081.

It is an arithmetic number, because the mean of its divisors is an integer number (100917081).

Almost surely, 2^201834161 is an apocalyptic number.

It is an amenable number.

201834161 is a deficient number, since it is larger than the sum of its proper divisors (1).

201834161 is an equidigital number, since it uses as much as digits as its factorization.

201834161 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 26.

The square root of 201834161 is about 14206.8350099521. The cubic root of 201834161 is about 586.5858168471.

The spelling of 201834161 in words is "two hundred one million, eight hundred thirty-four thousand, one hundred sixty-one".