12811382 has 16 divisors (see below), whose sum is σ = 19740672. Its totient is φ = 6233640.

The previous prime is 12811373. The next prime is 12811397. The reversal of 12811382 is 28311821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11243 + ... + 12329.

It is an arithmetic number, because the mean of its divisors is an integer number (1233792).

Almost surely, 2^12811382 is an apocalyptic number.

12811382 is a deficient number, since it is larger than the sum of its proper divisors (6929290).

12811382 is a wasteful number, since it uses less digits than its factorization.

12811382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243.

The product of its digits is 768, while the sum is 26.

The square root of 12811382 is about 3579.2990933980. The cubic root of 12811382 is about 233.9907342862.

The spelling of 12811382 in words is "twelve million, eight hundred eleven thousand, three hundred eighty-two".