12228983 has 4 divisors (see below), whose sum is σ = 13169688. Its totient is φ = 11288280.

The previous prime is 12228929. The next prime is 12228991. The reversal of 12228983 is 38982221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38982221 = 31 ⋅1257491.

It is a cyclic number.

It is not a de Polignac number, because 12228983 - 2¹⁰ = 12227959 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228583) 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, 470333 + ... + 470358.

It is an arithmetic number, because the mean of its divisors is an integer number (3292422).

Almost surely, 2^12228983 is an apocalyptic number.

12228983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12228983 is a deficient number, since it is larger than the sum of its proper divisors (940705).

12228983 is an equidigital number, since it uses as much as digits as its factorization.

12228983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940704.

The product of its digits is 13824, while the sum is 35.

The square root of 12228983 is about 3496.9962825259. The cubic root of 12228983 is about 230.3899057495.

The spelling of 12228983 in words is "twelve million, two hundred twenty-eight thousand, nine hundred eighty-three".