13078081 has 4 divisors (see below), whose sum is σ = 13144000. Its totient is φ = 13012164.

The previous prime is 13078073. The next prime is 13078097. The reversal of 13078081 is 18087031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13078081 - 2³ = 13078073 is a prime.

It is a super-2 number, since 2×13078081² = 342072405285122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13078031) 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 3 ways as a sum of consecutive naturals, for example, 32661 + ... + 33058.

It is an arithmetic number, because the mean of its divisors is an integer number (3286000).

Almost surely, 2^13078081 is an apocalyptic number.

It is an amenable number.

13078081 is a deficient number, since it is larger than the sum of its proper divisors (65919).

13078081 is an equidigital number, since it uses as much as digits as its factorization.

13078081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65918.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 13078081 is about 3616.3629519173. The cubic root of 13078081 is about 235.6032847078.

The spelling of 13078081 in words is "thirteen million, seventy-eight thousand, eighty-one".