133133113 has 4 divisors (see below), whose sum is σ = 137723940. Its totient is φ = 128542288.

The previous prime is 133133107. The next prime is 133133123. The reversal of 133133113 is 311331331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311331331 = 1627 ⋅191353.

It can be written as a sum of positive squares in 2 ways, for example, as 97456384 + 35676729 = 9872^2 + 5973^2 .

It is a cyclic number.

It is not a de Polignac number, because 133133113 - 2⁵ = 133133081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133133123) 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, 2295370 + ... + 2295427.

It is an arithmetic number, because the mean of its divisors is an integer number (34430985).

Almost surely, 2^133133113 is an apocalyptic number.

It is an amenable number.

133133113 is a deficient number, since it is larger than the sum of its proper divisors (4590827).

133133113 is an equidigital number, since it uses as much as digits as its factorization.

133133113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4590826.

The product of its digits is 243, while the sum is 19.

The square root of 133133113 is about 11538.3323318407. The cubic root of 133133113 is about 510.6171089390.

Adding to 133133113 its reverse (311331331), we get a palindrome (444464444).

The spelling of 133133113 in words is "one hundred thirty-three million, one hundred thirty-three thousand, one hundred thirteen".