12880481 has 4 divisors (see below), whose sum is σ = 12887700. Its totient is φ = 12873264.

The previous prime is 12880471. The next prime is 12880487. The reversal of 12880481 is 18408821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4950625 + 7929856 = 2225^2 + 2816^2 .

It is a cyclic number.

It is not a de Polignac number, because 12880481 - 2¹⁴ = 12864097 is a prime.

It is a super-2 number, since 2×12880481² = 331813581582722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12880487) 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, 1235 + ... + 5223.

It is an arithmetic number, because the mean of its divisors is an integer number (3221925).

Almost surely, 2^12880481 is an apocalyptic number.

It is an amenable number.

12880481 is a deficient number, since it is larger than the sum of its proper divisors (7219).

12880481 is an equidigital number, since it uses as much as digits as its factorization.

12880481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7218.

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 12880481 is about 3588.9387010647. The cubic root of 12880481 is about 234.4106615010.

The spelling of 12880481 in words is "twelve million, eight hundred eighty thousand, four hundred eighty-one".