12885146 has 4 divisors (see below), whose sum is σ = 19327722. Its totient is φ = 6442572.

The previous prime is 12885121. The next prime is 12885149. The reversal of 12885146 is 64158821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12880921 + 4225 = 3589^2 + 65^2 .

It is not an unprimeable number, because it can be changed into a prime (12885149) 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 as a sum of consecutive naturals, namely, 3221285 + ... + 3221288.

Almost surely, 2^12885146 is an apocalyptic number.

12885146 is a deficient number, since it is larger than the sum of its proper divisors (6442576).

12885146 is an equidigital number, since it uses as much as digits as its factorization.

12885146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442575.

The product of its digits is 15360, while the sum is 35.

The square root of 12885146 is about 3589.5885558097. The cubic root of 12885146 is about 234.4389573839.

It can be divided in two parts, 12885 and 146, that added together give a palindrome (13031).

The spelling of 12885146 in words is "twelve million, eight hundred eighty-five thousand, one hundred forty-six".