13581027 has 12 divisors (see below), whose sum is σ = 20343960. Its totient is φ = 9053856.

The previous prime is 13580989. The next prime is 13581053. The reversal of 13581027 is 72018531.

It is not a de Polignac number, because 13581027 - 2⁷ = 13580899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (13581097) 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, 27702 + ... + 28187.

It is an arithmetic number, because the mean of its divisors is an integer number (1695330).

Almost surely, 2^13581027 is an apocalyptic number.

13581027 is a deficient number, since it is larger than the sum of its proper divisors (6762933).

13581027 is an frugal number, since it uses more digits than its factorization.

13581027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55904 (or 55892 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 13581027 is about 3685.2444966379. The cubic root of 13581027 is about 238.5855869405.

Adding to 13581027 its reverse (72018531), we get a palindrome (85599558).

The spelling of 13581027 in words is "thirteen million, five hundred eighty-one thousand, twenty-seven".