12881489 has 4 divisors (see below), whose sum is σ = 13006656. Its totient is φ = 12756324.

The previous prime is 12881471. The next prime is 12881501. The reversal of 12881489 is 98418821.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98418821 = 149 ⋅660529.

It is a cyclic number.

It is not a de Polignac number, because 12881489 - 2¹² = 12877393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12881419) 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, 62429 + ... + 62634.

It is an arithmetic number, because the mean of its divisors is an integer number (3251664).

Almost surely, 2^12881489 is an apocalyptic number.

It is an amenable number.

12881489 is a deficient number, since it is larger than the sum of its proper divisors (125167).

12881489 is a wasteful number, since it uses less digits than its factorization.

12881489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125166.

The product of its digits is 36864, while the sum is 41.

The square root of 12881489 is about 3589.0791298047. The cubic root of 12881489 is about 234.4167761739.

The spelling of 12881489 in words is "twelve million, eight hundred eighty-one thousand, four hundred eighty-nine".