13782118 has 8 divisors (see below), whose sum is σ = 23626512. Its totient is φ = 5906616.

The previous prime is 13782113. The next prime is 13782133. The reversal of 13782118 is 81128731.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13782118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13782113) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 492205 + ... + 492232.

It is an arithmetic number, because the mean of its divisors is an integer number (2953314).

Almost surely, 2^13782118 is an apocalyptic number.

13782118 is a deficient number, since it is larger than the sum of its proper divisors (9844394).

13782118 is an equidigital number, since it uses as much as digits as its factorization.

13782118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984446.

The product of its digits is 2688, while the sum is 31.

The square root of 13782118 is about 3712.4275077097. The cubic root of 13782118 is about 239.7573821332.

The spelling of 13782118 in words is "thirteen million, seven hundred eighty-two thousand, one hundred eighteen".