133275913 has 8 divisors (see below), whose sum is σ = 138375936. Its totient is φ = 128226000.

The previous prime is 133275889. The next prime is 133275917. The reversal of 133275913 is 319572331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133275913 - 2¹³ = 133267721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133275917) 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 in 7 ways as a sum of consecutive naturals, for example, 7063 + ... + 17788.

It is an arithmetic number, because the mean of its divisors is an integer number (17296992).

Almost surely, 2^133275913 is an apocalyptic number.

It is an amenable number.

133275913 is a deficient number, since it is larger than the sum of its proper divisors (5100023).

133275913 is a wasteful number, since it uses less digits than its factorization.

133275913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25055.

The product of its digits is 17010, while the sum is 34.

The square root of 133275913 is about 11544.5187426761. The cubic root of 133275913 is about 510.7996081606.

The spelling of 133275913 in words is "one hundred thirty-three million, two hundred seventy-five thousand, nine hundred thirteen".