12271418 has 8 divisors (see below), whose sum is σ = 18798912. Its totient is φ = 6005116.

The previous prime is 12271417. The next prime is 12271421. The reversal of 12271418 is 81417221.

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

It is not an unprimeable number, because it can be changed into a prime (12271417) 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, 65180 + ... + 65367.

It is an arithmetic number, because the mean of its divisors is an integer number (2349864).

Almost surely, 2^12271418 is an apocalyptic number.

12271418 is a deficient number, since it is larger than the sum of its proper divisors (6527494).

12271418 is a wasteful number, since it uses less digits than its factorization.

12271418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130596.

The product of its digits is 896, while the sum is 26.

The square root of 12271418 is about 3503.0583780462. The cubic root of 12271418 is about 230.6560851209.

Adding to 12271418 its reverse (81417221), we get a palindrome (93688639).

The spelling of 12271418 in words is "twelve million, two hundred seventy-one thousand, four hundred eighteen".