12042347 has 2 divisors, whose sum is σ = 12042348. Its totient is φ = 12042346.

The previous prime is 12042343. The next prime is 12042383. The reversal of 12042347 is 74324021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12042347 - 2² = 12042343 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12042343) 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 as a sum of consecutive naturals, namely, 6021173 + 6021174.

It is an arithmetic number, because the mean of its divisors is an integer number (6021174).

Almost surely, 2^12042347 is an apocalyptic number.

12042347 is a deficient number, since it is larger than the sum of its proper divisors (1).

12042347 is an equidigital number, since it uses as much as digits as its factorization.

12042347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 12042347 is about 3470.2084951772. The cubic root of 12042347 is about 229.2118390879.

Adding to 12042347 its reverse (74324021), we get a palindrome (86366368).

The spelling of 12042347 in words is "twelve million, forty-two thousand, three hundred forty-seven".