13531154535 has 48 divisors (see below), whose sum is σ = 23993349120. Its totient is φ = 7051181760.

The previous prime is 13531154521. The next prime is 13531154543. The reversal of 13531154535 is 53545113531.

13531154535 is a `hidden beast` number, since 1 + 3 + 5 + 3 + 115 + 4 + 535 = 666.

It is not a de Polignac number, because 13531154535 - 2⁵ = 13531154503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13531154535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1329496 + ... + 1339634.

It is an arithmetic number, because the mean of its divisors is an integer number (499861440).

Almost surely, 2^13531154535 is an apocalyptic number.

13531154535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13531154535 is a deficient number, since it is larger than the sum of its proper divisors (10462194585).

13531154535 is a wasteful number, since it uses less digits than its factorization.

13531154535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10828 (or 10825 counting only the distinct ones).

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

The spelling of 13531154535 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty-four thousand, five hundred thirty-five".