13551132 has 24 divisors (see below), whose sum is σ = 36136576. Its totient is φ = 3871728.

The previous prime is 13551119. The next prime is 13551133. The reversal of 13551132 is 23115531.

13551132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 13551099 and 13551108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13551133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80578 + ... + 80745.

Almost surely, 2^13551132 is an apocalyptic number.

13551132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13551132 is an abundant number, since it is smaller than the sum of its proper divisors (22585444).

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

13551132 is a wasteful number, since it uses less digits than its factorization.

13551132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161337 (or 161335 counting only the distinct ones).

The product of its digits is 450, while the sum is 21.

The square root of 13551132 is about 3681.1862218584. The cubic root of 13551132 is about 238.4103975391.

Adding to 13551132 its reverse (23115531), we get a palindrome (36666663).

The spelling of 13551132 in words is "thirteen million, five hundred fifty-one thousand, one hundred thirty-two".