135220133 has 2 divisors, whose sum is σ = 135220134. Its totient is φ = 135220132.

The previous prime is 135220123. The next prime is 135220147. The reversal of 135220133 is 331022531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113252164 + 21967969 = 10642^2 + 4687^2 .

It is a cyclic number.

It is not a de Polignac number, because 135220133 - 2¹⁰ = 135219109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135220123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67610066 + 67610067.

It is an arithmetic number, because the mean of its divisors is an integer number (67610067).

Almost surely, 2^135220133 is an apocalyptic number.

It is an amenable number.

135220133 is a deficient number, since it is larger than the sum of its proper divisors (1).

135220133 is an equidigital number, since it uses as much as digits as its factorization.

135220133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 135220133 is about 11628.4191960902. The cubic root of 135220133 is about 513.2714637959.

Adding to 135220133 its reverse (331022531), we get a palindrome (466242664).

The spelling of 135220133 in words is "one hundred thirty-five million, two hundred twenty thousand, one hundred thirty-three".