4491133 has 2 divisors, whose sum is σ = 4491134. Its totient is φ = 4491132.

The previous prime is 4491121. The next prime is 4491161. The reversal of 4491133 is 3311944.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3175524 + 1315609 = 1782^2 + 1147^2 .

It is a cyclic number.

It is not a de Polignac number, because 4491133 - 2¹⁷ = 4360061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4491098 and 4491107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4491173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2245566 + 2245567.

It is an arithmetic number, because the mean of its divisors is an integer number (2245567).

Almost surely, 2^4491133 is an apocalyptic number.

It is an amenable number.

4491133 is a deficient number, since it is larger than the sum of its proper divisors (1).

4491133 is an equidigital number, since it uses as much as digits as its factorization.

4491133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 4491133 is about 2119.2293410577. The cubic root of 4491133 is about 164.9878534064.

It can be divided in two parts, 44911 and 33, that added together give a palindrome (44944).

The spelling of 4491133 in words is "four million, four hundred ninety-one thousand, one hundred thirty-three".