12315306 has 32 divisors (see below), whose sum is σ = 26380800. Its totient is φ = 3821040.

The previous prime is 12315301. The next prime is 12315323. The reversal of 12315306 is 60351321.

It is not an unprimeable number, because it can be changed into a prime (12315301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5811 + ... + 7641.

It is an arithmetic number, because the mean of its divisors is an integer number (824400).

Almost surely, 2^12315306 is an apocalyptic number.

12315306 is an abundant number, since it is smaller than the sum of its proper divisors (14065494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12315306 is a wasteful number, since it uses less digits than its factorization.

12315306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 12315306 is about 3509.3170275710. The cubic root of 12315306 is about 230.9307339034.

Adding to 12315306 its reverse (60351321), we get a palindrome (72666627).

It can be divided in two parts, 12315 and 306, that added together give a palindrome (12621).

The spelling of 12315306 in words is "twelve million, three hundred fifteen thousand, three hundred six".