3272161 has 4 divisors (see below), whose sum is σ = 3444400. Its totient is φ = 3099924.

The previous prime is 3272147. The next prime is 3272173. The reversal of 3272161 is 1612723.

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: 1612723 = 7 ⋅230389.

It is a cyclic number.

It is not a de Polignac number, because 3272161 - 2⁷ = 3272033 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

3272161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3272861) 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, 86091 + ... + 86128.

It is an arithmetic number, because the mean of its divisors is an integer number (861100).

Almost surely, 2^3272161 is an apocalyptic number.

It is an amenable number.

3272161 is a deficient number, since it is larger than the sum of its proper divisors (172239).

3272161 is a wasteful number, since it uses less digits than its factorization.

3272161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172238.

The product of its digits is 504, while the sum is 22.

The square root of 3272161 is about 1808.9115511821. The cubic root of 3272161 is about 148.4607173508.

Adding to 3272161 its reverse (1612723), we get a palindrome (4884884).

The spelling of 3272161 in words is "three million, two hundred seventy-two thousand, one hundred sixty-one".