12821485 has 24 divisors (see below), whose sum is σ = 17241120. Its totient is φ = 9126144.

The previous prime is 12821477. The next prime is 12821491. The reversal of 12821485 is 58412821.

12821485 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 12821485 - 2³ = 12821477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27222 + ... + 27688.

It is an arithmetic number, because the mean of its divisors is an integer number (718380).

Almost surely, 2^12821485 is an apocalyptic number.

It is an amenable number.

12821485 is a deficient number, since it is larger than the sum of its proper divisors (4419635).

12821485 is a wasteful number, since it uses less digits than its factorization.

12821485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 508 counting only the distinct ones).

The product of its digits is 5120, while the sum is 31.

The square root of 12821485 is about 3580.7101251009. The cubic root of 12821485 is about 234.0522261494.

The spelling of 12821485 in words is "twelve million, eight hundred twenty-one thousand, four hundred eighty-five".