384845161 has 2 divisors, whose sum is σ = 384845162. Its totient is φ = 384845160.

The previous prime is 384845159. The next prime is 384845207. The reversal of 384845161 is 161548483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211527936 + 173317225 = 14544^2 + 13165^2 .

It is an emirp because it is prime and its reverse (161548483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 384845161 - 2¹ = 384845159 is a prime.

Together with 384845159, 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 (384845861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192422580 + 192422581.

It is an arithmetic number, because the mean of its divisors is an integer number (192422581).

Almost surely, 2^384845161 is an apocalyptic number.

It is an amenable number.

384845161 is a deficient number, since it is larger than the sum of its proper divisors (1).

384845161 is an equidigital number, since it uses as much as digits as its factorization.

384845161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 40.

The square root of 384845161 is about 19617.4708104791. The cubic root of 384845161 is about 727.3810962051.

The spelling of 384845161 in words is "three hundred eighty-four million, eight hundred forty-five thousand, one hundred sixty-one".