13213545133 has 8 divisors (see below), whose sum is σ = 13294761752. Its totient is φ = 13132570176.

The previous prime is 13213545131. The next prime is 13213545151. The reversal of 13213545133 is 33154531231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4623592009 + 8589953124 = 67997^2 + 92682^2 .

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 13213545133 - 2¹ = 13213545131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13213545095 and 13213545104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213545131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49891 + ... + 170047.

It is an arithmetic number, because the mean of its divisors is an integer number (1661845219).

Almost surely, 2^13213545133 is an apocalyptic number.

It is an amenable number.

13213545133 is a deficient number, since it is larger than the sum of its proper divisors (81216619).

13213545133 is a wasteful number, since it uses less digits than its factorization.

13213545133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120831.

The product of its digits is 16200, while the sum is 31.

The spelling of 13213545133 in words is "thirteen billion, two hundred thirteen million, five hundred forty-five thousand, one hundred thirty-three".