3164221 has 2 divisors, whose sum is σ = 3164222. Its totient is φ = 3164220.

The previous prime is 3164197. The next prime is 3164233. The reversal of 3164221 is 1224613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1920996 + 1243225 = 1386^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 3164221 - 2²¹ = 1067069 is a prime.

It is a super-3 number, since 3×3164221³ = 95043337894972697583, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3164251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1582110 + 1582111.

It is an arithmetic number, because the mean of its divisors is an integer number (1582111).

Almost surely, 2^3164221 is an apocalyptic number.

It is an amenable number.

3164221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3164221 is an equidigital number, since it uses as much as digits as its factorization.

3164221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 3164221 is about 1778.8257362654. The cubic root of 3164221 is about 146.8099878867.

Adding to 3164221 its reverse (1224613), we get a palindrome (4388834).

The spelling of 3164221 in words is "three million, one hundred sixty-four thousand, two hundred twenty-one".