12706081 has 4 divisors (see below), whose sum is σ = 12895792. Its totient is φ = 12516372.

The previous prime is 12706073. The next prime is 12706093. The reversal of 12706081 is 18060721.

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 12706081 - 2³ = 12706073 is a prime.

It is a super-2 number, since 2×12706081² = 322888988757122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12706781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94755 + ... + 94888.

It is an arithmetic number, because the mean of its divisors is an integer number (3223948).

Almost surely, 2^12706081 is an apocalyptic number.

It is an amenable number.

12706081 is a deficient number, since it is larger than the sum of its proper divisors (189711).

12706081 is an equidigital number, since it uses as much as digits as its factorization.

12706081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189710.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 12706081 is about 3564.5590190092. The cubic root of 12706081 is about 233.3478873008.

The spelling of 12706081 in words is "twelve million, seven hundred six thousand, eighty-one".