12905285 has 8 divisors (see below), whose sum is σ = 15513120. Its totient is φ = 10306384.

The previous prime is 12905257. The next prime is 12905287. The reversal of 12905285 is 58250921.

12905285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12905285 - 2²⁰ = 11856709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12905287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1526 + ... + 5304.

It is an arithmetic number, because the mean of its divisors is an integer number (1939140).

Almost surely, 2^12905285 is an apocalyptic number.

It is an amenable number.

12905285 is a deficient number, since it is larger than the sum of its proper divisors (2607835).

12905285 is an equidigital number, since it uses as much as digits as its factorization.

12905285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 12905285 is about 3592.3926567122. The cubic root of 12905285 is about 234.5610335721.

The spelling of 12905285 in words is "twelve million, nine hundred five thousand, two hundred eighty-five".