12281841 has 32 divisors (see below), whose sum is σ = 21383040. Its totient is φ = 6868800.

The previous prime is 12281831. The next prime is 12281881. The reversal of 12281841 is 14818221.

It is not a de Polignac number, because 12281841 - 2⁷ = 12281713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12281831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2271 + ... + 5451.

It is an arithmetic number, because the mean of its divisors is an integer number (668220).

Almost surely, 2^12281841 is an apocalyptic number.

12281841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12281841 is a deficient number, since it is larger than the sum of its proper divisors (9101199).

12281841 is a wasteful number, since it uses less digits than its factorization.

12281841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214 (or 3208 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 12281841 is about 3504.5457622922. The cubic root of 12281841 is about 230.7213709211.

The spelling of 12281841 in words is "twelve million, two hundred eighty-one thousand, eight hundred forty-one".