12318025 has 6 divisors (see below), whose sum is σ = 15274382. Its totient is φ = 9854400.

The previous prime is 12317993. The next prime is 12318043. The reversal of 12318025 is 52081321.

It can be written as a sum of positive squares in 3 ways, for example, as 1048576 + 11269449 = 1024^2 + 3357^2 .

It is not a de Polignac number, because 12318025 - 2⁵ = 12317993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12317987 and 12318005.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246336 + ... + 246385.

Almost surely, 2^12318025 is an apocalyptic number.

It is an amenable number.

12318025 is a deficient number, since it is larger than the sum of its proper divisors (2956357).

12318025 is an equidigital number, since it uses as much as digits as its factorization.

12318025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492731 (or 492726 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 12318025 is about 3509.7044035075. The cubic root of 12318025 is about 230.9477277825.

Adding to 12318025 its reverse (52081321), we get a palindrome (64399346).

The spelling of 12318025 in words is "twelve million, three hundred eighteen thousand, twenty-five".