12801285 has 24 divisors (see below), whose sum is σ = 25359360. Its totient is φ = 5851872.

The previous prime is 12801259. The next prime is 12801293. The reversal of 12801285 is 58210821.

It is not a de Polignac number, because 12801285 - 2⁷ = 12801157 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, 20005 + ... + 20634.

It is an arithmetic number, because the mean of its divisors is an integer number (1056640).

Almost surely, 2^12801285 is an apocalyptic number.

12801285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12801285 is a deficient number, since it is larger than the sum of its proper divisors (12558075).

12801285 is a wasteful number, since it uses less digits than its factorization.

12801285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40657 (or 40654 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 12801285 is about 3577.8883437022. Note that the first 3 decimals coincide. The cubic root of 12801285 is about 233.9292466343.

The spelling of 12801285 in words is "twelve million, eight hundred one thousand, two hundred eighty-five".