12281867 has 8 divisors (see below), whose sum is σ = 13253856. Its totient is φ = 11313792.

The previous prime is 12281831. The next prime is 12281881. The reversal of 12281867 is 76818221.

12281867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12281867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12281827) 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, 12083 + ... + 13059.

It is an arithmetic number, because the mean of its divisors is an integer number (1656732).

Almost surely, 2^12281867 is an apocalyptic number.

12281867 is a deficient number, since it is larger than the sum of its proper divisors (971989).

12281867 is an equidigital number, since it uses as much as digits as its factorization.

12281867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957.

The product of its digits is 10752, while the sum is 35.

The square root of 12281867 is about 3504.5494717581. The cubic root of 12281867 is about 230.7215337292.

The spelling of 12281867 in words is "twelve million, two hundred eighty-one thousand, eight hundred sixty-seven".