3133321 has 8 divisors (see below), whose sum is σ = 3342600. Its totient is φ = 2926848.

The previous prime is 3133303. The next prime is 3133331. The reversal of 3133321 is 1233313.

It can be written as a sum of positive squares in 4 ways, for example, as 608400 + 2524921 = 780^2 + 1589^2 .

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 3133321 - 2⁵ = 3133289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3133295 and 3133304.

It is not an unprimeable number, because it can be changed into a prime (3133331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1915 + ... + 3151.

It is an arithmetic number, because the mean of its divisors is an integer number (417825).

Almost surely, 2^3133321 is an apocalyptic number.

It is an amenable number.

3133321 is a deficient number, since it is larger than the sum of its proper divisors (209279).

3133321 is a wasteful number, since it uses less digits than its factorization.

3133321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403.

The product of its digits is 162, while the sum is 16.

The square root of 3133321 is about 1770.1189225586. The cubic root of 3133321 is about 146.3305359142.

Adding to 3133321 its reverse (1233313), we get a palindrome (4366634).

The spelling of 3133321 in words is "three million, one hundred thirty-three thousand, three hundred twenty-one".