12885147 has 24 divisors (see below), whose sum is σ = 20457840. Its totient is φ = 7750080.

The previous prime is 12885121. The next prime is 12885149. The reversal of 12885147 is 74158821.

12885147 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12885147 - 2⁸ = 12884891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12885149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15129 + ... + 15957.

It is an arithmetic number, because the mean of its divisors is an integer number (852410).

It is a vampire number, since it can be written as 2487 ⋅ 5181 (with its own digits).

Almost surely, 2^12885147 is an apocalyptic number.

12885147 is a deficient number, since it is larger than the sum of its proper divisors (7572693).

12885147 is a wasteful number, since it uses less digits than its factorization.

12885147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 1000 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 12885147 is about 3589.5886951014. The cubic root of 12885147 is about 234.4389634488.

The spelling of 12885147 in words is "twelve million, eight hundred eighty-five thousand, one hundred forty-seven".