3321161 has 4 divisors (see below), whose sum is σ = 3391872. Its totient is φ = 3250452.

The previous prime is 3321151. The next prime is 3321163. The reversal of 3321161 is 1611233.

3321161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 1611233 = 13 ⋅123941.

It is a cyclic number.

It is not a de Polignac number, because 3321161 - 2¹⁰ = 3320137 is a prime.

It is a super-2 number, since 2×3321161² = 22060220775842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3321163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35285 + ... + 35378.

It is an arithmetic number, because the mean of its divisors is an integer number (847968).

Almost surely, 2^3321161 is an apocalyptic number.

It is an amenable number.

3321161 is a deficient number, since it is larger than the sum of its proper divisors (70711).

3321161 is an equidigital number, since it uses as much as digits as its factorization.

3321161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70710.

The product of its digits is 108, while the sum is 17.

The square root of 3321161 is about 1822.4052787456. The cubic root of 3321161 is about 149.1981059304.

Adding to 3321161 its reverse (1611233), we get a palindrome (4932394).

The spelling of 3321161 in words is "three million, three hundred twenty-one thousand, one hundred sixty-one".