133375933 has 4 divisors (see below), whose sum is σ = 133533148. Its totient is φ = 133218720.

The previous prime is 133375909. The next prime is 133375973. The reversal of 133375933 is 339573331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 339573331 = 7949 ⋅42719.

It can be written as a sum of positive squares in 2 ways, for example, as 19377604 + 113998329 = 4402^2 + 10677^2 .

It is a cyclic number.

It is not a de Polignac number, because 133375933 - 2²¹ = 131278781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133375892 and 133375901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133375973) 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 in 3 ways as a sum of consecutive naturals, for example, 77328 + ... + 79033.

It is an arithmetic number, because the mean of its divisors is an integer number (33383287).

Almost surely, 2^133375933 is an apocalyptic number.

It is an amenable number.

133375933 is a deficient number, since it is larger than the sum of its proper divisors (157215).

133375933 is an equidigital number, since it uses as much as digits as its factorization.

133375933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157214.

The product of its digits is 76545, while the sum is 37.

The square root of 133375933 is about 11548.8498561545. The cubic root of 133375933 is about 510.9273566797.

The spelling of 133375933 in words is "one hundred thirty-three million, three hundred seventy-five thousand, nine hundred thirty-three".