12881032 has 16 divisors (see below), whose sum is σ = 24805260. Its totient is φ = 6266304.

The previous prime is 12881023. The next prime is 12881041. The reversal of 12881032 is 23018821.

It is an interprime number because it is at equal distance from previous prime (12881023) and next prime (12881041).

It can be written as a sum of positive squares in 2 ways, for example, as 12574116 + 306916 = 3546^2 + 554^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12880988 and 12881006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21463 + ... + 22054.

Almost surely, 2^12881032 is an apocalyptic number.

It is an amenable number.

12881032 is a deficient number, since it is larger than the sum of its proper divisors (11924228).

12881032 is a wasteful number, since it uses less digits than its factorization.

12881032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43560 (or 43556 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 12881032 is about 3589.0154638842. The cubic root of 12881032 is about 234.4140039858.

Adding to 12881032 its reverse (23018821), we get a palindrome (35899853).

The spelling of 12881032 in words is "twelve million, eight hundred eighty-one thousand, thirty-two".