12305471 has 2 divisors, whose sum is σ = 12305472. Its totient is φ = 12305470.

The previous prime is 12305441. The next prime is 12305509. The reversal of 12305471 is 17450321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12305471 is a prime.

It is a super-3 number, since 3×12305471³ (a number of 22 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12305401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152735 + 6152736.

It is an arithmetic number, because the mean of its divisors is an integer number (6152736).

Almost surely, 2^12305471 is an apocalyptic number.

12305471 is a deficient number, since it is larger than the sum of its proper divisors (1).

12305471 is an equidigital number, since it uses as much as digits as its factorization.

12305471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 12305471 is about 3507.9154778871. The cubic root of 12305471 is about 230.8692437916.

Adding to 12305471 its reverse (17450321), we get a palindrome (29755792).

The spelling of 12305471 in words is "twelve million, three hundred five thousand, four hundred seventy-one".