12316445 has 16 divisors (see below), whose sum is σ = 15459120. Its totient is φ = 9419200.

The previous prime is 12316439. The next prime is 12316457. The reversal of 12316445 is 54461321.

It can be written as a sum of positive squares in 8 ways, for example, as 219961 + 12096484 = 469^2 + 3478^2 .

It is not a de Polignac number, because 12316445 - 2⁴ = 12316429 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 121895 + ... + 121995.

It is an arithmetic number, because the mean of its divisors is an integer number (966195).

Almost surely, 2^12316445 is an apocalyptic number.

It is an amenable number.

12316445 is a deficient number, since it is larger than the sum of its proper divisors (3142675).

12316445 is an frugal number, since it uses more digits than its factorization.

12316445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 135 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 12316445 is about 3509.4793061080. The cubic root of 12316445 is about 230.9378530119.

Adding to 12316445 its reverse (54461321), we get a palindrome (66777766).

The spelling of 12316445 in words is "twelve million, three hundred sixteen thousand, four hundred forty-five".