13782565 has 8 divisors (see below), whose sum is σ = 16738848. Its totient is φ = 10892880.

The previous prime is 13782557. The next prime is 13782583. The reversal of 13782565 is 56528731.

13782565 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 13782565 - 2³ = 13782557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16191 + ... + 17020.

It is an arithmetic number, because the mean of its divisors is an integer number (2092356).

Almost surely, 2^13782565 is an apocalyptic number.

It is an amenable number.

13782565 is a deficient number, since it is larger than the sum of its proper divisors (2956283).

13782565 is an equidigital number, since it uses as much as digits as its factorization.

13782565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33299.

The product of its digits is 50400, while the sum is 37.

The square root of 13782565 is about 3712.4877104174. The cubic root of 13782565 is about 239.7599741487.

The spelling of 13782565 in words is "thirteen million, seven hundred eighty-two thousand, five hundred sixty-five".