12318622 has 4 divisors (see below), whose sum is σ = 18477936. Its totient is φ = 6159310.

The previous prime is 12318583. The next prime is 12318623. The reversal of 12318622 is 22681321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12318623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3079654 + ... + 3079657.

It is an arithmetic number, because the mean of its divisors is an integer number (4619484).

Almost surely, 2^12318622 is an apocalyptic number.

12318622 is a deficient number, since it is larger than the sum of its proper divisors (6159314).

12318622 is an equidigital number, since it uses as much as digits as its factorization.

12318622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6159313.

The product of its digits is 1152, while the sum is 25.

The square root of 12318622 is about 3509.7894523746. The cubic root of 12318622 is about 230.9514587260.

Adding to 12318622 its reverse (22681321), we get a palindrome (34999943).

The spelling of 12318622 in words is "twelve million, three hundred eighteen thousand, six hundred twenty-two".