133552135 has 4 divisors (see below), whose sum is σ = 160262568. Its totient is φ = 106841704.

The previous prime is 133552091. The next prime is 133552183. The reversal of 133552135 is 531255331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531255331 = 331 ⋅1605001.

It is a cyclic number.

It is not a de Polignac number, because 133552135 - 2¹⁷ = 133421063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13355209 + ... + 13355218.

It is an arithmetic number, because the mean of its divisors is an integer number (40065642).

Almost surely, 2^133552135 is an apocalyptic number.

133552135 is a deficient number, since it is larger than the sum of its proper divisors (26710433).

133552135 is an equidigital number, since it uses as much as digits as its factorization.

133552135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26710432.

The product of its digits is 6750, while the sum is 28.

The square root of 133552135 is about 11556.4758901665. The cubic root of 133552135 is about 511.1522518431.

The spelling of 133552135 in words is "one hundred thirty-three million, five hundred fifty-two thousand, one hundred thirty-five".