12305345 has 16 divisors (see below), whose sum is σ = 16595712. Its totient is φ = 8690880.

The previous prime is 12305333. The next prime is 12305383. The reversal of 12305345 is 54350321.

It is not a de Polignac number, because 12305345 - 2¹⁴ = 12288961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12305345.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2621 + ... + 5610.

It is an arithmetic number, because the mean of its divisors is an integer number (1037232).

Almost surely, 2^12305345 is an apocalyptic number.

It is an amenable number.

12305345 is a deficient number, since it is larger than the sum of its proper divisors (4290367).

12305345 is a wasteful number, since it uses less digits than its factorization.

12305345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 12305345 is about 3507.8975184575. The cubic root of 12305345 is about 230.8684558054.

Adding to 12305345 its reverse (54350321), we get a palindrome (66655666).

The spelling of 12305345 in words is "twelve million, three hundred five thousand, three hundred forty-five".