2281331 has 6 divisors (see below), whose sum is σ = 2470500. Its totient is φ = 2105688.

The previous prime is 2281327. The next prime is 2281361. The reversal of 2281331 is 1331822.

It is not a de Polignac number, because 2281331 - 2² = 2281327 is a prime.

It is a super-2 number, since 2×2281331² = 10408942263122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2281361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6581 + ... + 6918.

It is an arithmetic number, because the mean of its divisors is an integer number (411750).

2^2281331 is an apocalyptic number.

2281331 is a deficient number, since it is larger than the sum of its proper divisors (189169).

2281331 is a wasteful number, since it uses less digits than its factorization.

2281331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13525 (or 13512 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 2281331 is about 1510.4075608921. The cubic root of 2281331 is about 131.6424937375.

The spelling of 2281331 in words is "two million, two hundred eighty-one thousand, three hundred thirty-one".