12046081 has 4 divisors (see below), whose sum is σ = 12754692. Its totient is φ = 11337472.

The previous prime is 12046079. The next prime is 12046103. The reversal of 12046081 is 18064021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18064021 = 641 ⋅28181.

It can be written as a sum of positive squares in 2 ways, for example, as 5363856 + 6682225 = 2316^2 + 2585^2 .

It is a cyclic number.

It is not a de Polignac number, because 12046081 - 2¹ = 12046079 is a prime.

It is a super-2 number, since 2×12046081² = 290216134917122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12046031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354280 + ... + 354313.

It is an arithmetic number, because the mean of its divisors is an integer number (3188673).

Almost surely, 2^12046081 is an apocalyptic number.

It is an amenable number.

12046081 is a deficient number, since it is larger than the sum of its proper divisors (708611).

12046081 is an equidigital number, since it uses as much as digits as its factorization.

12046081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708610.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 12046081 is about 3470.7464614979. The cubic root of 12046081 is about 229.2355273983.

The spelling of 12046081 in words is "twelve million, forty-six thousand, eighty-one".