12318045 has 16 divisors (see below), whose sum is σ = 19932480. Its totient is φ = 6495104.

The previous prime is 12318043. The next prime is 12318071. The reversal of 12318045 is 54081321.

12318045 = T₄₈₁ + T₄₈₂ + ... + T₅₆₉.

It is a cyclic number.

It is not a de Polignac number, because 12318045 - 2¹ = 12318043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12318043) 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 in 15 ways as a sum of consecutive naturals, for example, 3279 + ... + 5948.

It is an arithmetic number, because the mean of its divisors is an integer number (1245780).

Almost surely, 2^12318045 is an apocalyptic number.

12318045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12318045 is a deficient number, since it is larger than the sum of its proper divisors (7614435).

12318045 is an equidigital number, since it uses as much as digits as its factorization.

12318045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 12318045 is about 3509.7072527492. The cubic root of 12318045 is about 230.9478527741.

Adding to 12318045 its reverse (54081321), we get a palindrome (66399366).

The spelling of 12318045 in words is "twelve million, three hundred eighteen thousand, forty-five".