384161161 has 2 divisors, whose sum is σ = 384161162. Its totient is φ = 384161160.

The previous prime is 384161153. The next prime is 384161179. The reversal of 384161161 is 161161483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383964025 + 197136 = 19595^2 + 444^2 .

It is a cyclic number.

It is not a de Polignac number, because 384161161 - 2³ = 384161153 is a prime.

It is not a weakly prime, because it can be changed into another prime (384161761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192080580 + 192080581.

It is an arithmetic number, because the mean of its divisors is an integer number (192080581).

Almost surely, 2^384161161 is an apocalyptic number.

It is an amenable number.

384161161 is a deficient number, since it is larger than the sum of its proper divisors (1).

384161161 is an equidigital number, since it uses as much as digits as its factorization.

384161161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 31.

The square root of 384161161 is about 19600.0296173246. The cubic root of 384161161 is about 726.9499065817.

The spelling of 384161161 in words is "three hundred eighty-four million, one hundred sixty-one thousand, one hundred sixty-one".