3281261 has 4 divisors (see below), whose sum is σ = 3297024. Its totient is φ = 3265500.

The previous prime is 3281233. The next prime is 3281269. The reversal of 3281261 is 1621823.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3281261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3281269) 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, 7565 + ... + 7986.

It is an arithmetic number, because the mean of its divisors is an integer number (824256).

Almost surely, 2^3281261 is an apocalyptic number.

It is an amenable number.

3281261 is a deficient number, since it is larger than the sum of its proper divisors (15763).

3281261 is a wasteful number, since it uses less digits than its factorization.

3281261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15762.

The product of its digits is 576, while the sum is 23.

The square root of 3281261 is about 1811.4251295596. The cubic root of 3281261 is about 148.5982148713.

The spelling of 3281261 in words is "three million, two hundred eighty-one thousand, two hundred sixty-one".