13145450523 has 16 divisors (see below), whose sum is σ = 18452640000. Its totient is φ = 8301091680.

The previous prime is 13145450519. The next prime is 13145450533. The reversal of 13145450523 is 32505454131.

13145450523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13145450523 - 2² = 13145450519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13145450533) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 459853 + ... + 487601.

It is an arithmetic number, because the mean of its divisors is an integer number (1153290000).

Almost surely, 2^13145450523 is an apocalyptic number.

13145450523 is a deficient number, since it is larger than the sum of its proper divisors (5307189477).

13145450523 is a wasteful number, since it uses less digits than its factorization.

13145450523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36082.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 13145450523 in words is "thirteen billion, one hundred forty-five million, four hundred fifty thousand, five hundred twenty-three".