12883581 has 12 divisors (see below), whose sum is σ = 18683808. Its totient is φ = 8554824.

The previous prime is 12883573. The next prime is 12883597. The reversal of 12883581 is 18538821.

It is not a de Polignac number, because 12883581 - 2³ = 12883573 is a prime.

It is a super-2 number, since 2×12883581² = 331973318767122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12883561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355 + ... + 5088.

It is an arithmetic number, because the mean of its divisors is an integer number (1556984).

Almost surely, 2^12883581 is an apocalyptic number.

It is an amenable number.

12883581 is a deficient number, since it is larger than the sum of its proper divisors (5800227).

12883581 is a wasteful number, since it uses less digits than its factorization.

12883581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712 (or 5709 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The square root of 12883581 is about 3589.3705576326. The cubic root of 12883581 is about 234.4294655286.

The spelling of 12883581 in words is "twelve million, eight hundred eighty-three thousand, five hundred eighty-one".