133513113 has 4 divisors (see below), whose sum is σ = 178017488. Its totient is φ = 89008740.

The previous prime is 133513103. The next prime is 133513117. The reversal of 133513113 is 311315331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311315331 = 3 ⋅103771777.

It is not a de Polignac number, because 133513113 - 2⁶ = 133513049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133513113.

It is not an unprimeable number, because it can be changed into a prime (133513117) 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, 22252183 + ... + 22252188.

It is an arithmetic number, because the mean of its divisors is an integer number (44504372).

Almost surely, 2^133513113 is an apocalyptic number.

It is an amenable number.

133513113 is a deficient number, since it is larger than the sum of its proper divisors (44504375).

133513113 is an equidigital number, since it uses as much as digits as its factorization.

133513113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44504374.

The product of its digits is 405, while the sum is 21.

The square root of 133513113 is about 11554.7874493649. The cubic root of 133513113 is about 511.1024632315.

Adding to 133513113 its reverse (311315331), we get a palindrome (444828444).

The spelling of 133513113 in words is "one hundred thirty-three million, five hundred thirteen thousand, one hundred thirteen".