13531134505 has 16 divisors (see below), whose sum is σ = 19196881920. Its totient is φ = 8958543552.

The previous prime is 13531134443. The next prime is 13531134509. The reversal of 13531134505 is 50543113531.

It is a de Polignac number, because none of the positive numbers 2^k-13531134505 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13531134509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6664569 + ... + 6666598.

It is an arithmetic number, because the mean of its divisors is an integer number (1199805120).

Almost surely, 2^13531134505 is an apocalyptic number.

It is an amenable number.

13531134505 is a deficient number, since it is larger than the sum of its proper divisors (5665747415).

13531134505 is a wasteful number, since it uses less digits than its factorization.

13531134505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13331208.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 13531134505 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-four thousand, five hundred five".