3281161 has 8 divisors (see below), whose sum is σ = 3548160. Its totient is φ = 3016272.

The previous prime is 3281149. The next prime is 3281171. The reversal of 3281161 is 1611823.

It is the 740-th star number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3281161 - 2⁹ = 3280649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3281101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4650 + ... + 5308.

It is an arithmetic number, because the mean of its divisors is an integer number (443520).

Almost surely, 2^3281161 is an apocalyptic number.

It is an amenable number.

3281161 is a deficient number, since it is larger than the sum of its proper divisors (266999).

3281161 is a wasteful number, since it uses less digits than its factorization.

3281161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055.

The product of its digits is 288, while the sum is 22.

The square root of 3281161 is about 1811.3975267732. The cubic root of 3281161 is about 148.5967052919.

Adding to 3281161 its reverse (1611823), we get a palindrome (4892984).

The spelling of 3281161 in words is "three million, two hundred eighty-one thousand, one hundred sixty-one".