13523532132 has 48 divisors (see below), whose sum is σ = 35533983744. Its totient is φ = 3965844000.

The previous prime is 13523532109. The next prime is 13523532137. The reversal of 13523532132 is 23123532531.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13523532132.

It is not an unprimeable number, because it can be changed into a prime (13523532137) 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, 1648344 + ... + 1656527.

It is an arithmetic number, because the mean of its divisors is an integer number (740291328).

Almost surely, 2^13523532132 is an apocalyptic number.

13523532132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13523532132 is an abundant number, since it is smaller than the sum of its proper divisors (22010451612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13523532132 is a wasteful number, since it uses less digits than its factorization.

13523532132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304920 (or 3304918 counting only the distinct ones).

The product of its digits is 16200, while the sum is 30.

The spelling of 13523532132 in words is "thirteen billion, five hundred twenty-three million, five hundred thirty-two thousand, one hundred thirty-two".