12881911 has 8 divisors (see below), whose sum is σ = 14747040. Its totient is φ = 11023008.

The previous prime is 12881899. The next prime is 12881917. The reversal of 12881911 is 11918821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12881911 - 2⁷ = 12881783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12881917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4425 + ... + 6733.

It is an arithmetic number, because the mean of its divisors is an integer number (1843380).

Almost surely, 2^12881911 is an apocalyptic number.

12881911 is a deficient number, since it is larger than the sum of its proper divisors (1865129).

12881911 is an equidigital number, since it uses as much as digits as its factorization.

12881911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113.

The product of its digits is 1152, while the sum is 31.

The square root of 12881911 is about 3589.1379187766. The cubic root of 12881911 is about 234.4193359918.

The spelling of 12881911 in words is "twelve million, eight hundred eighty-one thousand, nine hundred eleven".