12318633 has 6 divisors (see below), whose sum is σ = 17793594. Its totient is φ = 8212416.

The previous prime is 12318623. The next prime is 12318689. The reversal of 12318633 is 33681321.

It is a happy number.

12318633 is a `hidden beast` number, since 1 + 23 + 1 + 8 + 633 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7601049 + 4717584 = 2757^2 + 2172^2 .

It is not a de Polignac number, because 12318633 - 2⁶ = 12318569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12318597 and 12318606.

It is not an unprimeable number, because it can be changed into a prime (12318623) 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 5 ways as a sum of consecutive naturals, for example, 684360 + ... + 684377.

It is an arithmetic number, because the mean of its divisors is an integer number (2965599).

Almost surely, 2^12318633 is an apocalyptic number.

It is an amenable number.

12318633 is a deficient number, since it is larger than the sum of its proper divisors (5474961).

12318633 is a wasteful number, since it uses less digits than its factorization.

12318633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368743 (or 1368740 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 12318633 is about 3509.7910194198. The cubic root of 12318633 is about 230.9515274692.

Adding to 12318633 its reverse (33681321), we get a palindrome (45999954).

The spelling of 12318633 in words is "twelve million, three hundred eighteen thousand, six hundred thirty-three".