3281147 has 4 divisors (see below), whose sum is σ = 3394320. Its totient is φ = 3167976.

The previous prime is 3281141. The next prime is 3281149. The reversal of 3281147 is 7411823.

3281147 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.

It is a cyclic number.

It is not a de Polignac number, because 3281147 - 2¹² = 3277051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3281141) 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, 56543 + ... + 56600.

It is an arithmetic number, because the mean of its divisors is an integer number (848580).

Almost surely, 2^3281147 is an apocalyptic number.

3281147 is a deficient number, since it is larger than the sum of its proper divisors (113173).

3281147 is a wasteful number, since it uses less digits than its factorization.

3281147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113172.

The product of its digits is 1344, while the sum is 26.

The square root of 3281147 is about 1811.3936623495. The cubic root of 3281147 is about 148.5964939483.

The spelling of 3281147 in words is "three million, two hundred eighty-one thousand, one hundred forty-seven".