327201161 has 4 divisors (see below), whose sum is σ = 373944192. Its totient is φ = 280458132.

The previous prime is 327201139. The next prime is 327201191. The reversal of 327201161 is 161102723.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-327201161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (327201191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23371505 + ... + 23371518.

It is an arithmetic number, because the mean of its divisors is an integer number (93486048).

Almost surely, 2^327201161 is an apocalyptic number.

It is an amenable number.

327201161 is a deficient number, since it is larger than the sum of its proper divisors (46743031).

327201161 is an equidigital number, since it uses as much as digits as its factorization.

327201161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46743030.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 327201161 is about 18088.7025792344. The cubic root of 327201161 is about 689.0831209056.

Adding to 327201161 its reverse (161102723), we get a palindrome (488303884).

The spelling of 327201161 in words is "three hundred twenty-seven million, two hundred one thousand, one hundred sixty-one".