133506941 has 2 divisors, whose sum is σ = 133506942. Its totient is φ = 133506940.

The previous prime is 133506937. The next prime is 133506949. The reversal of 133506941 is 149605331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81522841 + 51984100 = 9029^2 + 7210^2 .

It is a cyclic number.

It is not a de Polignac number, because 133506941 - 2² = 133506937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 133506898 and 133506907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133506949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66753470 + 66753471.

It is an arithmetic number, because the mean of its divisors is an integer number (66753471).

Almost surely, 2^133506941 is an apocalyptic number.

It is an amenable number.

133506941 is a deficient number, since it is larger than the sum of its proper divisors (1).

133506941 is an equidigital number, since it uses as much as digits as its factorization.

133506941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 133506941 is about 11554.5203708332. The cubic root of 133506941 is about 511.0945874183.

The spelling of 133506941 in words is "one hundred thirty-three million, five hundred six thousand, nine hundred forty-one".