12854905 has 24 divisors (see below), whose sum is σ = 18221760. Its totient is φ = 8678880.

The previous prime is 12854903. The next prime is 12854921. The reversal of 12854905 is 50945821.

It is not a de Polignac number, because 12854905 - 2¹ = 12854903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12854903) by changing a digit.

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, 17026 + ... + 17764.

It is an arithmetic number, because the mean of its divisors is an integer number (759240).

Almost surely, 2^12854905 is an apocalyptic number.

It is an amenable number.

12854905 is a deficient number, since it is larger than the sum of its proper divisors (5366855).

12854905 is an equidigital number, since it uses as much as digits as its factorization.

12854905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 12854905 is about 3585.3737601539. The cubic root of 12854905 is about 234.2554069568.

The spelling of 12854905 in words is "twelve million, eight hundred fifty-four thousand, nine hundred five".