12708081 has 6 divisors (see below), whose sum is σ = 18356130. Its totient is φ = 8472048.

The previous prime is 12708079. The next prime is 12708107. The reversal of 12708081 is 18080721.

12708081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11289600 + 1418481 = 3360^2 + 1191^2 .

It is not a de Polignac number, because 12708081 - 2¹ = 12708079 is a prime.

It is a super-2 number, since 2×12708081² = 322990645405122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12708011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 705996 + ... + 706013.

It is an arithmetic number, because the mean of its divisors is an integer number (3059355).

Almost surely, 2^12708081 is an apocalyptic number.

It is an amenable number.

12708081 is a deficient number, since it is larger than the sum of its proper divisors (5648049).

12708081 is a wasteful number, since it uses less digits than its factorization.

12708081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412015 (or 1412012 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 12708081 is about 3564.8395475813. The cubic root of 12708081 is about 233.3601300290.

The spelling of 12708081 in words is "twelve million, seven hundred eight thousand, eighty-one".