12641318 has 8 divisors (see below), whose sum is σ = 18990048. Its totient is φ = 6311304.

The previous prime is 12641311. The next prime is 12641323. The reversal of 12641318 is 81314621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12641311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2846 + ... + 5777.

It is an arithmetic number, because the mean of its divisors is an integer number (2373756).

Almost surely, 2^12641318 is an apocalyptic number.

12641318 is a deficient number, since it is larger than the sum of its proper divisors (6348730).

12641318 is an equidigital number, since it uses as much as digits as its factorization.

12641318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9358.

The product of its digits is 1152, while the sum is 26.

The square root of 12641318 is about 3555.4631203262. The cubic root of 12641318 is about 232.9507530983.

Adding to 12641318 its reverse (81314621), we get a palindrome (93955939).

The spelling of 12641318 in words is "twelve million, six hundred forty-one thousand, three hundred eighteen".