13532135531 has 4 divisors (see below), whose sum is σ = 13968656064. Its totient is φ = 13095615000.

The previous prime is 13532135459. The next prime is 13532135579. The reversal of 13532135531 is 13553123531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13532135531 is a prime.

It is a super-2 number, since 2×13532135531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13532135231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218260220 + ... + 218260281.

It is an arithmetic number, because the mean of its divisors is an integer number (3492164016).

Almost surely, 2^13532135531 is an apocalyptic number.

13532135531 is a deficient number, since it is larger than the sum of its proper divisors (436520533).

13532135531 is an equidigital number, since it uses as much as digits as its factorization.

13532135531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436520532.

The product of its digits is 20250, while the sum is 32.

The spelling of 13532135531 in words is "thirteen billion, five hundred thirty-two million, one hundred thirty-five thousand, five hundred thirty-one".