13531555135 has 16 divisors (see below), whose sum is σ = 18559927296. Its totient is φ = 9277597728.

The previous prime is 13531555129. The next prime is 13531555157. The reversal of 13531555135 is 53155513531.

It is a de Polignac number, because none of the positive numbers 2^k-13531555135 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13531555094 and 13531555103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322794 + ... + 362296.

It is an arithmetic number, because the mean of its divisors is an integer number (1159995456).

Almost surely, 2^13531555135 is an apocalyptic number.

13531555135 is a deficient number, since it is larger than the sum of its proper divisors (5028372161).

13531555135 is an equidigital number, since it uses as much as digits as its factorization.

13531555135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49302.

The product of its digits is 84375, while the sum is 37.

The spelling of 13531555135 in words is "thirteen billion, five hundred thirty-one million, five hundred fifty-five thousand, one hundred thirty-five".