12230947 has 2 divisors, whose sum is σ = 12230948. Its totient is φ = 12230946.

The previous prime is 12230929. The next prime is 12230983. The reversal of 12230947 is 74903221.

It is a weak prime.

It is an emirp because it is prime and its reverse (74903221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12230947 is a prime.

It is not a weakly prime, because it can be changed into another prime (12230047) 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 as a sum of consecutive naturals, namely, 6115473 + 6115474.

It is an arithmetic number, because the mean of its divisors is an integer number (6115474).

Almost surely, 2^12230947 is an apocalyptic number.

12230947 is a deficient number, since it is larger than the sum of its proper divisors (1).

12230947 is an equidigital number, since it uses as much as digits as its factorization.

12230947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 12230947 is about 3497.2770836752. The cubic root of 12230947 is about 230.4022387880.

It can be divided in two parts, 1223094 and 7, that multiplied together give a palindrome (8561658).

The spelling of 12230947 in words is "twelve million, two hundred thirty thousand, nine hundred forty-seven".