133055135 has 4 divisors (see below), whose sum is σ = 159666168. Its totient is φ = 106444104.

The previous prime is 133055113. The next prime is 133055137. The reversal of 133055135 is 531550331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531550331 = 13 ⋅40888487.

It is a cyclic number.

It is not a de Polignac number, because 133055135 - 2⁸ = 133054879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133055137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13305509 + ... + 13305518.

It is an arithmetic number, because the mean of its divisors is an integer number (39916542).

Almost surely, 2^133055135 is an apocalyptic number.

133055135 is a deficient number, since it is larger than the sum of its proper divisors (26611033).

133055135 is an equidigital number, since it uses as much as digits as its factorization.

133055135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26611032.

The product of its (nonzero) digits is 3375, while the sum is 26.

The square root of 133055135 is about 11534.9527523957. The cubic root of 133055135 is about 510.5173975140.

It can be divided in two parts, 1330 and 55135, that added together give a palindrome (56465).

The spelling of 133055135 in words is "one hundred thirty-three million, fifty-five thousand, one hundred thirty-five".