6651133 has 2 divisors, whose sum is σ = 6651134. Its totient is φ = 6651132.

The previous prime is 6651119. The next prime is 6651149. The reversal of 6651133 is 3311566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6335289 + 315844 = 2517^2 + 562^2 .

It is a cyclic number.

It is not a de Polignac number, because 6651133 - 2⁵ = 6651101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6651098 and 6651107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6651173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325566 + 3325567.

It is an arithmetic number, because the mean of its divisors is an integer number (3325567).

Almost surely, 2^6651133 is an apocalyptic number.

It is an amenable number.

6651133 is a deficient number, since it is larger than the sum of its proper divisors (1).

6651133 is an equidigital number, since it uses as much as digits as its factorization.

6651133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 25.

The square root of 6651133 is about 2578.9790615668. The cubic root of 6651133 is about 188.0609146955.

Adding to 6651133 its reverse (3311566), we get a palindrome (9962699).

The spelling of 6651133 in words is "six million, six hundred fifty-one thousand, one hundred thirty-three".