12305447 has 8 divisors (see below), whose sum is σ = 15341952. Its totient is φ = 9588600.

The previous prime is 12305441. The next prime is 12305471. The reversal of 12305447 is 74450321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12305447 - 2⁴ = 12305431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305441) 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 7 ways as a sum of consecutive naturals, for example, 79829 + ... + 79982.

It is an arithmetic number, because the mean of its divisors is an integer number (1917744).

Almost surely, 2^12305447 is an apocalyptic number.

12305447 is a deficient number, since it is larger than the sum of its proper divisors (3036505).

12305447 is a wasteful number, since it uses less digits than its factorization.

12305447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159829.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 12305447 is about 3507.9120570505. The cubic root of 12305447 is about 230.8690936994.

Adding to 12305447 its reverse (74450321), we get a palindrome (86755768).

The spelling of 12305447 in words is "twelve million, three hundred five thousand, four hundred forty-seven".