133439113 has 4 divisors (see below), whose sum is σ = 133765780. Its totient is φ = 133112448.

The previous prime is 133439093. The next prime is 133439129. The reversal of 133439113 is 311934331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57957769 + 75481344 = 7613^2 + 8688^2 .

It is a cyclic number.

It is not a de Polignac number, because 133439113 - 2⁵ = 133439081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133409113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162720 + ... + 163537.

It is an arithmetic number, because the mean of its divisors is an integer number (33441445).

Almost surely, 2^133439113 is an apocalyptic number.

It is an amenable number.

133439113 is a deficient number, since it is larger than the sum of its proper divisors (326667).

133439113 is an equidigital number, since it uses as much as digits as its factorization.

133439113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326666.

The product of its digits is 2916, while the sum is 28.

The square root of 133439113 is about 11551.5848696185. The cubic root of 133439113 is about 511.0080191449.

The spelling of 133439113 in words is "one hundred thirty-three million, four hundred thirty-nine thousand, one hundred thirteen".