12305564 has 6 divisors (see below), whose sum is σ = 21534744. Its totient is φ = 6152780.

The previous prime is 12305561. The next prime is 12305581. The reversal of 12305564 is 46550321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305561) 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, 1538192 + ... + 1538199.

It is an arithmetic number, because the mean of its divisors is an integer number (3589124).

Almost surely, 2^12305564 is an apocalyptic number.

It is an amenable number.

12305564 is a deficient number, since it is larger than the sum of its proper divisors (9229180).

12305564 is a wasteful number, since it uses less digits than its factorization.

12305564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076395 (or 3076393 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 12305564 is about 3507.9287335976. The cubic root of 12305564 is about 230.8698253970.

Adding to 12305564 its reverse (46550321), we get a palindrome (58855885).

The spelling of 12305564 in words is "twelve million, three hundred five thousand, five hundred sixty-four".