329361161 has 4 divisors (see below), whose sum is σ = 338262852. Its totient is φ = 320459472.

The previous prime is 329361139. The next prime is 329361163. The reversal of 329361161 is 161163923.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 318265600 + 11095561 = 17840^2 + 3331^2 .

It is a cyclic number.

It is not a de Polignac number, because 329361161 - 2¹⁰ = 329360137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (329361163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4450790 + ... + 4450863.

It is an arithmetic number, because the mean of its divisors is an integer number (84565713).

Almost surely, 2^329361161 is an apocalyptic number.

It is an amenable number.

329361161 is a deficient number, since it is larger than the sum of its proper divisors (8901691).

329361161 is an equidigital number, since it uses as much as digits as its factorization.

329361161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8901690.

The product of its digits is 5832, while the sum is 32.

The square root of 329361161 is about 18148.3101417184. The cubic root of 329361161 is about 690.5961109132.

The spelling of 329361161 in words is "three hundred twenty-nine million, three hundred sixty-one thousand, one hundred sixty-one".