12318265 has 4 divisors (see below), whose sum is σ = 14781924. Its totient is φ = 9854608.

The previous prime is 12318259. The next prime is 12318283. The reversal of 12318265 is 56281321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4678569 + 7639696 = 2163^2 + 2764^2 .

It is a cyclic number.

It is not a de Polignac number, because 12318265 - 2¹³ = 12310073 is a prime.

It is a super-2 number, since 2×12318265² = 303479305220450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231822 + ... + 1231831.

It is an arithmetic number, because the mean of its divisors is an integer number (3695481).

Almost surely, 2^12318265 is an apocalyptic number.

It is an amenable number.

12318265 is a deficient number, since it is larger than the sum of its proper divisors (2463659).

12318265 is an equidigital number, since it uses as much as digits as its factorization.

12318265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463658.

The product of its digits is 2880, while the sum is 28.

The square root of 12318265 is about 3509.7385942546. The cubic root of 12318265 is about 230.9492276737.

Adding to 12318265 its reverse (56281321), we get a palindrome (68599586).

The spelling of 12318265 in words is "twelve million, three hundred eighteen thousand, two hundred sixty-five".