12812526 has 48 divisors (see below), whose sum is σ = 30282480. Its totient is φ = 4014720.

The previous prime is 12812497. The next prime is 12812531. The reversal of 12812526 is 62521821.

It is a happy number.

12812526 is a `hidden beast` number, since 128 + 12 + 526 = 666.

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

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 12812526.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 15196 + ... + 16016.

It is an arithmetic number, because the mean of its divisors is an integer number (630885).

Almost surely, 2^12812526 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12812526, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15141240).

12812526 is an abundant number, since it is smaller than the sum of its proper divisors (17469954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12812526 is a wasteful number, since it uses less digits than its factorization.

12812526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 843 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 12812526 is about 3579.4588976548. The cubic root of 12812526 is about 233.9976988597.

The spelling of 12812526 in words is "twelve million, eight hundred twelve thousand, five hundred twenty-six".