324421161 has 4 divisors (see below), whose sum is σ = 432561552. Its totient is φ = 216280772.

The previous prime is 324421159. The next prime is 324421171. The reversal of 324421161 is 161124423.

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, and also an emirpimes, since its reverse is a distinct semiprime: 161124423 = 3 ⋅53708141.

It is a cyclic number.

It is not a de Polignac number, because 324421161 - 2¹ = 324421159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (324421121) 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, 54070191 + ... + 54070196.

It is an arithmetic number, because the mean of its divisors is an integer number (108140388).

Almost surely, 2^324421161 is an apocalyptic number.

It is an amenable number.

324421161 is a deficient number, since it is larger than the sum of its proper divisors (108140391).

324421161 is a wasteful number, since it uses less digits than its factorization.

324421161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108140390.

The product of its digits is 1152, while the sum is 24.

The square root of 324421161 is about 18011.6951173397. The cubic root of 324421161 is about 687.1260148229.

Adding to 324421161 its reverse (161124423), we get a palindrome (485545584).

The spelling of 324421161 in words is "three hundred twenty-four million, four hundred twenty-one thousand, one hundred sixty-one".