13581084 has 48 divisors (see below), whose sum is σ = 34868736. Its totient is φ = 4080000.

The previous prime is 13581083. The next prime is 13581089. The reversal of 13581084 is 48018531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13581083) 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, 17709 + ... + 18459.

It is an arithmetic number, because the mean of its divisors is an integer number (726432).

Almost surely, 2^13581084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13581084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17434368).

13581084 is an abundant number, since it is smaller than the sum of its proper divisors (21287652).

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

13581084 is a wasteful number, since it uses less digits than its factorization.

13581084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 13581084 is about 3685.2522301737. The cubic root of 13581084 is about 238.5859207238.

It can be divided in two parts, 1358 and 1084, that added together give a palindrome (2442).

The spelling of 13581084 in words is "thirteen million, five hundred eighty-one thousand, eighty-four".