3221541 has 24 divisors (see below), whose sum is σ = 4942080. Its totient is φ = 2018016.

The previous prime is 3221539. The next prime is 3221549. The reversal of 3221541 is 1451223.

It is not a de Polignac number, because 3221541 - 2¹ = 3221539 is a prime.

It is a super-5 number, since 5×3221541⁵ (a number of 34 digits) contains 55555 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16255 + ... + 16451.

It is an arithmetic number, because the mean of its divisors is an integer number (205920).

Almost surely, 2^3221541 is an apocalyptic number.

It is an amenable number.

3221541 is a deficient number, since it is larger than the sum of its proper divisors (1720539).

3221541 is a wasteful number, since it uses less digits than its factorization.

3221541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 302 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 3221541 is about 1794.8651759951. The cubic root of 3221541 is about 147.6911779386.

Adding to 3221541 its reverse (1451223), we get a palindrome (4672764).

The spelling of 3221541 in words is "three million, two hundred twenty-one thousand, five hundred forty-one".