12980281 has 4 divisors (see below), whose sum is σ = 13282192. Its totient is φ = 12678372.

The previous prime is 12980273. The next prime is 12980309. The reversal of 12980281 is 18208921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12980281 - 2³ = 12980273 is a prime.

It is a super-2 number, since 2×12980281² = 336975389677922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12980221) 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, 150891 + ... + 150976.

It is an arithmetic number, because the mean of its divisors is an integer number (3320548).

Almost surely, 2^12980281 is an apocalyptic number.

It is an amenable number.

12980281 is a deficient number, since it is larger than the sum of its proper divisors (301911).

12980281 is an equidigital number, since it uses as much as digits as its factorization.

12980281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301910.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 12980281 is about 3602.8157044179. The cubic root of 12980281 is about 235.0145215110.

The spelling of 12980281 in words is "twelve million, nine hundred eighty thousand, two hundred eighty-one".