2721133 has 2 divisors, whose sum is σ = 2721134. Its totient is φ = 2721132.

The previous prime is 2721127. The next prime is 2721137. The reversal of 2721133 is 3311272.

2721133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1633284 + 1087849 = 1278^2 + 1043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2721133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2721133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2721137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360566 + 1360567.

It is an arithmetic number, because the mean of its divisors is an integer number (1360567).

2^2721133 is an apocalyptic number.

It is an amenable number.

2721133 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721133 is an equidigital number, since it uses as much as digits as its factorization.

2721133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252, while the sum is 19.

The square root of 2721133 is about 1649.5857055637. The cubic root of 2721133 is about 139.6100201345.

The spelling of 2721133 in words is "two million, seven hundred twenty-one thousand, one hundred thirty-three".