13545133445 has 4 divisors (see below), whose sum is σ = 16254160140. Its totient is φ = 10836106752.

The previous prime is 13545133373. The next prime is 13545133453. The reversal of 13545133445 is 54433154531.

13545133445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54433154531 = 7 ⋅7776164933.

It can be written as a sum of positive squares in 2 ways, for example, as 4585185796 + 8959947649 = 67714^2 + 94657^2 .

It is a cyclic number.

It is not a de Polignac number, because 13545133445 - 2²⁴ = 13528356229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13545133399 and 13545133408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1354513340 + ... + 1354513349.

It is an arithmetic number, because the mean of its divisors is an integer number (4063540035).

Almost surely, 2^13545133445 is an apocalyptic number.

It is an amenable number.

13545133445 is a deficient number, since it is larger than the sum of its proper divisors (2709026695).

13545133445 is an equidigital number, since it uses as much as digits as its factorization.

13545133445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709026694.

The product of its digits is 216000, while the sum is 38.

Adding to 13545133445 its reverse (54433154531), we get a palindrome (67978287976).

The spelling of 13545133445 in words is "thirteen billion, five hundred forty-five million, one hundred thirty-three thousand, four hundred forty-five".