12280159 has 4 divisors (see below), whose sum is σ = 12303400. Its totient is φ = 12256920.

The previous prime is 12280157. The next prime is 12280181. The reversal of 12280159 is 95108221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95108221 = 13 ⋅7316017.

It is a cyclic number.

It is not a de Polignac number, because 12280159 - 2¹ = 12280157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12280157) 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, 10809 + ... + 11890.

It is an arithmetic number, because the mean of its divisors is an integer number (3075850).

Almost surely, 2^12280159 is an apocalyptic number.

12280159 is a deficient number, since it is larger than the sum of its proper divisors (23241).

12280159 is an equidigital number, since it uses as much as digits as its factorization.

12280159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23240.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 12280159 is about 3504.3057800369. The cubic root of 12280159 is about 230.7108379979.

The spelling of 12280159 in words is "twelve million, two hundred eighty thousand, one hundred fifty-nine".