133555134313 has 4 divisors (see below), whose sum is σ = 133557181060. Its totient is φ = 133553087568.

The previous prime is 133555134301. The next prime is 133555134319. The reversal of 133555134313 is 313431555331.

It is a happy number.

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 83075379984 + 50479754329 = 288228^2 + 224677^2 .

It is a cyclic number.

It is not a de Polignac number, because 133555134313 - 2⁹ = 133555133801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133555134319) 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, 922158 + ... + 1057111.

It is an arithmetic number, because the mean of its divisors is an integer number (33389295265).

Almost surely, 2^133555134313 is an apocalyptic number.

It is an amenable number.

133555134313 is a deficient number, since it is larger than the sum of its proper divisors (2046747).

133555134313 is an equidigital number, since it uses as much as digits as its factorization.

133555134313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046746.

The product of its digits is 121500, while the sum is 37.

Adding to 133555134313 its reverse (313431555331), we get a palindrome (446986689644).

The spelling of 133555134313 in words is "one hundred thirty-three billion, five hundred fifty-five million, one hundred thirty-four thousand, three hundred thirteen".