133253135 has 4 divisors (see below), whose sum is σ = 159903768. Its totient is φ = 106602504.

The previous prime is 133253129. The next prime is 133253143. The reversal of 133253135 is 531352331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531352331 = 3463 ⋅153437.

It is a cyclic number.

It is not a de Polignac number, because 133253135 - 2¹⁴ = 133236751 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, 13325309 + ... + 13325318.

It is an arithmetic number, because the mean of its divisors is an integer number (39975942).

Almost surely, 2^133253135 is an apocalyptic number.

133253135 is a deficient number, since it is larger than the sum of its proper divisors (26650633).

133253135 is an equidigital number, since it uses as much as digits as its factorization.

133253135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26650632.

The product of its digits is 4050, while the sum is 26.

The square root of 133253135 is about 11543.5321717402. The cubic root of 133253135 is about 510.7705064870.

The spelling of 133253135 in words is "one hundred thirty-three million, two hundred fifty-three thousand, one hundred thirty-five".