3281111 has 4 divisors (see below), whose sum is σ = 3423792. Its totient is φ = 3138432.

The previous prime is 3281101. The next prime is 3281137. The reversal of 3281111 is 1111823.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3281111 is a prime.

It is a Duffinian number.

3281111 is a modest number, since divided by 1111 gives 328 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 3281111.

It is a congruent number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71306 + ... + 71351.

It is an arithmetic number, because the mean of its divisors is an integer number (855948).

Almost surely, 2^3281111 is an apocalyptic number.

3281111 is a deficient number, since it is larger than the sum of its proper divisors (142681).

3281111 is a wasteful number, since it uses less digits than its factorization.

3281111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142680.

The product of its digits is 48, while the sum is 17.

The square root of 3281111 is about 1811.3837252222. The cubic root of 3281111 is about 148.5959504907.

Adding to 3281111 its reverse (1111823), we get a palindrome (4392934).

The spelling of 3281111 in words is "three million, two hundred eighty-one thousand, one hundred eleven".