12281914 has 4 divisors (see below), whose sum is σ = 18422874. Its totient is φ = 6140956.

The previous prime is 12281909. The next prime is 12281947. The reversal of 12281914 is 41918221.

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

It can be written as a sum of positive squares in only one way, i.e., 11444689 + 837225 = 3383^2 + 915^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3070477 + ... + 3070480.

Almost surely, 2^12281914 is an apocalyptic number.

12281914 is a deficient number, since it is larger than the sum of its proper divisors (6140960).

12281914 is an equidigital number, since it uses as much as digits as its factorization.

12281914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6140959.

The product of its digits is 1152, while the sum is 28.

The square root of 12281914 is about 3504.5561773212. The cubic root of 12281914 is about 230.7218280357.

The spelling of 12281914 in words is "twelve million, two hundred eighty-one thousand, nine hundred fourteen".