13427565 has 8 divisors (see below), whose sum is σ = 21484128. Its totient is φ = 7161360.

The previous prime is 13427563. The next prime is 13427573. The reversal of 13427565 is 56572431.

13427565 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13427565 - 2¹ = 13427563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13427563) 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, 447571 + ... + 447600.

It is an arithmetic number, because the mean of its divisors is an integer number (2685516).

Almost surely, 2^13427565 is an apocalyptic number.

13427565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13427565 is a deficient number, since it is larger than the sum of its proper divisors (8056563).

13427565 is an equidigital number, since it uses as much as digits as its factorization.

13427565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895179.

The product of its digits is 25200, while the sum is 33.

The square root of 13427565 is about 3664.3642013315. The cubic root of 13427565 is about 237.6835294236.

Adding to 13427565 its reverse (56572431), we get a palindrome (69999996).

The spelling of 13427565 in words is "thirteen million, four hundred twenty-seven thousand, five hundred sixty-five".