12881242 has 16 divisors (see below), whose sum is σ = 21995712. Its totient is φ = 5600320.

The previous prime is 12881207. The next prime is 12881251. The reversal of 12881242 is 24218821.

It is a self number, because there is not a number n which added to its sum of digits gives 12881242.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12223 + ... + 13234.

It is an arithmetic number, because the mean of its divisors is an integer number (1374732).

Almost surely, 2^12881242 is an apocalyptic number.

12881242 is a deficient number, since it is larger than the sum of its proper divisors (9114470).

12881242 is a wasteful number, since it uses less digits than its factorization.

12881242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25493.

The product of its digits is 2048, while the sum is 28.

The square root of 12881242 is about 3589.0447196991. The cubic root of 12881242 is about 234.4152778659.

The spelling of 12881242 in words is "twelve million, eight hundred eighty-one thousand, two hundred forty-two".