12080947 has 4 divisors (see below), whose sum is σ = 12153456. Its totient is φ = 12008440.

The previous prime is 12080923. The next prime is 12080953. The reversal of 12080947 is 74908021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12080947 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12080977) 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, 36004 + ... + 36337.

It is an arithmetic number, because the mean of its divisors is an integer number (3038364).

Almost surely, 2^12080947 is an apocalyptic number.

12080947 is a deficient number, since it is larger than the sum of its proper divisors (72509).

12080947 is an equidigital number, since it uses as much as digits as its factorization.

12080947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72508.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12080947 is about 3475.7656710429. The cubic root of 12080947 is about 229.4564796765.

Adding to 12080947 its reverse (74908021), we get a palindrome (86988968).

The spelling of 12080947 in words is "twelve million, eighty thousand, nine hundred forty-seven".