13081115 has 8 divisors (see below), whose sum is σ = 15717888. Its totient is φ = 10451200.

The previous prime is 13081099. The next prime is 13081153. The reversal of 13081115 is 51118031.

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

It is not a de Polignac number, because 13081115 - 2⁴ = 13081099 is a prime.

It is a super-2 number, since 2×13081115² = 342231139286450, which contains 22 as substring.

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, 4619 + ... + 6891.

It is an arithmetic number, because the mean of its divisors is an integer number (1964736).

Almost surely, 2^13081115 is an apocalyptic number.

13081115 is a deficient number, since it is larger than the sum of its proper divisors (2636773).

13081115 is a wasteful number, since it uses less digits than its factorization.

13081115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3429.

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 13081115 is about 3616.7824098223. The cubic root of 13081115 is about 235.6215025971.

Adding to 13081115 its reverse (51118031), we get a palindrome (64199146).

The spelling of 13081115 in words is "thirteen million, eighty-one thousand, one hundred fifteen".