12481911 has 32 divisors (see below), whose sum is σ = 20401920. Its totient is φ = 7493472.

The previous prime is 12481907. The next prime is 12481951. The reversal of 12481911 is 11918421.

12481911 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12481911 - 2² = 12481907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12481901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14680 + ... + 15506.

It is an arithmetic number, because the mean of its divisors is an integer number (637560).

Almost surely, 2^12481911 is an apocalyptic number.

12481911 is a deficient number, since it is larger than the sum of its proper divisors (7920009).

12481911 is a wasteful number, since it uses less digits than its factorization.

12481911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892 (or 886 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 12481911 is about 3532.9748088544. The cubic root of 12481911 is about 231.9674387021.

The spelling of 12481911 in words is "twelve million, four hundred eighty-one thousand, nine hundred eleven".