3164324221 has 4 divisors (see below), whose sum is σ = 3164989212. Its totient is φ = 3163659232.

The previous prime is 3164324131. The next prime is 3164324227. The reversal of 3164324221 is 1224234613.

It is a happy number.

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 2358559225 + 805764996 = 48565^2 + 28386^2 .

It is a cyclic number.

It is not a de Polignac number, because 3164324221 - 2⁹ = 3164323709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3164324221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3164324227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325306 + ... + 334891.

It is an arithmetic number, because the mean of its divisors is an integer number (791247303).

Almost surely, 2^3164324221 is an apocalyptic number.

It is an amenable number.

3164324221 is a deficient number, since it is larger than the sum of its proper divisors (664991).

3164324221 is an equidigital number, since it uses as much as digits as its factorization.

3164324221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664990.

The product of its digits is 6912, while the sum is 28.

The square root of 3164324221 is about 56252.3263607826. The cubic root of 3164324221 is about 1468.1158424684.

Adding to 3164324221 its reverse (1224234613), we get a palindrome (4388558834).

The spelling of 3164324221 in words is "three billion, one hundred sixty-four million, three hundred twenty-four thousand, two hundred twenty-one".