13331532 has 36 divisors (see below), whose sum is σ = 32240936. Its totient is φ = 4287360.

The previous prime is 13331531. The next prime is 13331533. The reversal of 13331532 is 23513331.

13331532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13331531) and next prime (13331533).

It is a junction number, because it is equal to n+sod(n) for n = 13331499 and 13331508.

It is not an unprimeable number, because it can be changed into a prime (13331531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9432 + ... + 10752.

Almost surely, 2^13331532 is an apocalyptic number.

13331532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13331532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16120468).

13331532 is an abundant number, since it is smaller than the sum of its proper divisors (18909404).

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

13331532 is a wasteful number, since it uses less digits than its factorization.

13331532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 1355 counting only the distinct ones).

The product of its digits is 810, while the sum is 21.

The square root of 13331532 is about 3651.2370506446. The cubic root of 13331532 is about 237.1155412343.

Adding to 13331532 its reverse (23513331), we get a palindrome (36844863).

The spelling of 13331532 in words is "thirteen million, three hundred thirty-one thousand, five hundred thirty-two".