13078881 has 16 divisors (see below), whose sum is σ = 20219520. Its totient is φ = 8339760.

The previous prime is 13078873. The next prime is 13078889. The reversal of 13078881 is 18887031.

13078881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13078873) and next prime (13078889).

It is not a de Polignac number, because 13078881 - 2³ = 13078873 is a prime.

It is a super-2 number, since 2×13078881² = 342114256424322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13078889) 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 15 ways as a sum of consecutive naturals, for example, 9910 + ... + 11151.

It is an arithmetic number, because the mean of its divisors is an integer number (1263720).

Almost surely, 2^13078881 is an apocalyptic number.

It is an amenable number.

13078881 is a deficient number, since it is larger than the sum of its proper divisors (7140639).

13078881 is a wasteful number, since it uses less digits than its factorization.

13078881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21093 (or 21087 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 13078881 is about 3616.4735585927. The cubic root of 13078881 is about 235.6080886436.

The spelling of 13078881 in words is "thirteen million, seventy-eight thousand, eight hundred eighty-one".