13591140 has 96 divisors (see below), whose sum is σ = 40279680. Its totient is φ = 3419136.

The previous prime is 13591133. The next prime is 13591141. The reversal of 13591140 is 4119531.

13591140 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13591140.

It is not an unprimeable number, because it can be changed into a prime (13591141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126967 + ... + 127073.

It is an arithmetic number, because the mean of its divisors is an integer number (419580).

Almost surely, 2^13591140 is an apocalyptic number.

13591140 is a gapful number since it is divisible by the number (10) 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 13591140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20139840).

13591140 is an abundant number, since it is smaller than the sum of its proper divisors (26688540).

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

13591140 is a wasteful number, since it uses less digits than its factorization.

13591140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 13591140 is about 3686.6163347981. The cubic root of 13591140 is about 238.6447925120.

It can be divided in two parts, 13591 and 140, that added together give a palindrome (13731).

The spelling of 13591140 in words is "thirteen million, five hundred ninety-one thousand, one hundred forty".