12280859 has 6 divisors (see below), whose sum is σ = 12961620. Its totient is φ = 11634156.

The previous prime is 12280841. The next prime is 12280861. The reversal of 12280859 is 95808221.

It is a de Polignac number, because none of the positive numbers 2^k-12280859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12280759) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 16649 + ... + 17370.

It is an arithmetic number, because the mean of its divisors is an integer number (2160270).

Almost surely, 2^12280859 is an apocalyptic number.

12280859 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12280859 is a deficient number, since it is larger than the sum of its proper divisors (680761).

12280859 is an equidigital number, since it uses as much as digits as its factorization.

12280859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34057 (or 34038 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 12280859 is about 3504.4056557425. The cubic root of 12280859 is about 230.7152216143.

The spelling of 12280859 in words is "twelve million, two hundred eighty thousand, eight hundred fifty-nine".