13281715 has 8 divisors (see below), whose sum is σ = 15972768. Its totient is φ = 10602240.

The previous prime is 13281701. The next prime is 13281727. The reversal of 13281715 is 51718231.

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

It is not a de Polignac number, because 13281715 - 2¹¹ = 13279667 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126 + ... + 5155.

It is an arithmetic number, because the mean of its divisors is an integer number (1996596).

Almost surely, 2^13281715 is an apocalyptic number.

13281715 is a deficient number, since it is larger than the sum of its proper divisors (2691053).

13281715 is an equidigital number, since it uses as much as digits as its factorization.

13281715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789.

The product of its digits is 1680, while the sum is 28.

The square root of 13281715 is about 3644.4087311936. The cubic root of 13281715 is about 236.8198230586.

Adding to 13281715 its reverse (51718231), we get a palindrome (64999946).

The spelling of 13281715 in words is "thirteen million, two hundred eighty-one thousand, seven hundred fifteen".