12315326 has 4 divisors (see below), whose sum is σ = 18472992. Its totient is φ = 6157662.

The previous prime is 12315323. The next prime is 12315349. The reversal of 12315326 is 62351321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62351321 = 23 ⋅2710927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3078830 + ... + 3078833.

It is an arithmetic number, because the mean of its divisors is an integer number (4618248).

Almost surely, 2^12315326 is an apocalyptic number.

12315326 is a deficient number, since it is larger than the sum of its proper divisors (6157666).

12315326 is an equidigital number, since it uses as much as digits as its factorization.

12315326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6157665.

The product of its digits is 1080, while the sum is 23.

The square root of 12315326 is about 3509.3198771272. The cubic root of 12315326 is about 230.9308589135.

Adding to 12315326 its reverse (62351321), we get a palindrome (74666647).

The spelling of 12315326 in words is "twelve million, three hundred fifteen thousand, three hundred twenty-six".