12884181 has 16 divisors (see below), whose sum is σ = 18278784. Its totient is φ = 8044544.

The previous prime is 12884171. The next prime is 12884197. The reversal of 12884181 is 18148821.

It is a cyclic number.

It is not a de Polignac number, because 12884181 - 2¹⁴ = 12867797 is a prime.

It is a super-2 number, since 2×12884181² = 332004240081522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12884161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12616 + ... + 13598.

It is an arithmetic number, because the mean of its divisors is an integer number (1142424).

Almost surely, 2^12884181 is an apocalyptic number.

It is an amenable number.

12884181 is a deficient number, since it is larger than the sum of its proper divisors (5394603).

12884181 is a wasteful number, since it uses less digits than its factorization.

12884181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260.

The product of its digits is 4096, while the sum is 33.

The square root of 12884181 is about 3589.4541367734. The cubic root of 12884181 is about 234.4331046694.

The spelling of 12884181 in words is "twelve million, eight hundred eighty-four thousand, one hundred eighty-one".