12181414 has 16 divisors (see below), whose sum is σ = 21277728. Its totient is φ = 5121792.

The previous prime is 12181409. The next prime is 12181417. The reversal of 12181414 is 41418121.

It is an alternating number because its digits alternate between odd and even.

12181414 is a modest number, since divided by 1414 gives 1218 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12181417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7467 + ... + 8950.

It is an arithmetic number, because the mean of its divisors is an integer number (1329858).

Almost surely, 2^12181414 is an apocalyptic number.

12181414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12181414 is a deficient number, since it is larger than the sum of its proper divisors (9096314).

12181414 is a wasteful number, since it uses less digits than its factorization.

12181414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16479.

The product of its digits is 256, while the sum is 22.

The square root of 12181414 is about 3490.1882470721. The cubic root of 12181414 is about 230.0907896141.

Adding to 12181414 its reverse (41418121), we get a palindrome (53599535).

The spelling of 12181414 in words is "twelve million, one hundred eighty-one thousand, four hundred fourteen".