13531134555 has 12 divisors (see below), whose sum is σ = 23453966640. Its totient is φ = 7216605072.

The previous prime is 13531134527. The next prime is 13531134557. The reversal of 13531134555 is 55543113531.

13531134555 is a `hidden beast` number, since 13 + 53 + 11 + 34 + 555 = 666.

13531134555 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 13531134555 - 2¹⁴ = 13531118171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13531134557) 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 11 ways as a sum of consecutive naturals, for example, 150345895 + ... + 150345984.

It is an arithmetic number, because the mean of its divisors is an integer number (1954497220).

Almost surely, 2^13531134555 is an apocalyptic number.

13531134555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13531134555 is a deficient number, since it is larger than the sum of its proper divisors (9922832085).

13531134555 is a wasteful number, since it uses less digits than its factorization.

13531134555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300691890 (or 300691887 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

The spelling of 13531134555 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-four thousand, five hundred fifty-five".