13831105 has 8 divisors (see below), whose sum is σ = 16636392. Its totient is φ = 11038848.

The previous prime is 13831093. The next prime is 13831121. The reversal of 13831105 is 50113831.

It can be written as a sum of positive squares in 4 ways, for example, as 986049 + 12845056 = 993^2 + 3584^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13831105 is a prime.

It is a Duffinian 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, 742 + ... + 5311.

It is an arithmetic number, because the mean of its divisors is an integer number (2079549).

Almost surely, 2^13831105 is an apocalyptic number.

It is an amenable number.

13831105 is a deficient number, since it is larger than the sum of its proper divisors (2805287).

13831105 is an equidigital number, since it uses as much as digits as its factorization.

13831105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6515.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 13831105 is about 3719.0193599926. The cubic root of 13831105 is about 240.0411098560.

Adding to 13831105 its reverse (50113831), we get a palindrome (63944936).

The spelling of 13831105 in words is "thirteen million, eight hundred thirty-one thousand, one hundred five".