12381306 has 16 divisors (see below), whose sum is σ = 28300224. Its totient is φ = 3537504.

The previous prime is 12381227. The next prime is 12381319. The reversal of 12381306 is 60318321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147355 + ... + 147438.

It is an arithmetic number, because the mean of its divisors is an integer number (1768764).

Almost surely, 2^12381306 is an apocalyptic number.

12381306 is an abundant number, since it is smaller than the sum of its proper divisors (15918918).

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

12381306 is a wasteful number, since it uses less digits than its factorization.

12381306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294805.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12381306 is about 3518.7080015256. The cubic root of 12381306 is about 231.3425326305.

Adding to 12381306 its reverse (60318321), we get a palindrome (72699627).

The spelling of 12381306 in words is "twelve million, three hundred eighty-one thousand, three hundred six".