3121133 has 4 divisors (see below), whose sum is σ = 3124668. Its totient is φ = 3117600.

The previous prime is 3121121. The next prime is 3121163. The reversal of 3121133 is 3311213.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 850084 + 2271049 = 922^2 + 1507^2 .

It is a cyclic number.

It is not a de Polignac number, because 3121133 - 2¹⁴ = 3104749 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 (3121163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833 + ... + 2633.

It is an arithmetic number, because the mean of its divisors is an integer number (781167).

Almost surely, 2^3121133 is an apocalyptic number.

It is an amenable number.

3121133 is a deficient number, since it is larger than the sum of its proper divisors (3535).

3121133 is a wasteful number, since it uses less digits than its factorization.

3121133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534.

The product of its digits is 54, while the sum is 14.

The square root of 3121133 is about 1766.6728616244. The cubic root of 3121133 is about 146.1405570771.

Adding to 3121133 its reverse (3311213), we get a palindrome (6432346).

The spelling of 3121133 in words is "three million, one hundred twenty-one thousand, one hundred thirty-three".