13067681 has 8 divisors (see below), whose sum is σ = 14313024. Its totient is φ = 11831920.

The previous prime is 13067669. The next prime is 13067693. The reversal of 13067681 is 18676031.

13067681 is digitally balanced in base 2, 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 (13067669) and next prime (13067693).

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

It is a cyclic number.

It is not a de Polignac number, because 13067681 - 2¹⁰ = 13066657 is a prime.

It is a super-2 number, since 2×13067681² = 341528573435522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13067651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635 + ... + 5151.

It is an arithmetic number, because the mean of its divisors is an integer number (1789128).

Almost surely, 2^13067681 is an apocalyptic number.

13067681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13067681 is a deficient number, since it is larger than the sum of its proper divisors (1245343).

13067681 is a wasteful number, since it uses less digits than its factorization.

13067681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4791.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 13067681 is about 3614.9247571699. The cubic root of 13067681 is about 235.5408157071.

The spelling of 13067681 in words is "thirteen million, sixty-seven thousand, six hundred eighty-one".