12928185 has 24 divisors (see below), whose sum is σ = 23385024. Its totient is φ = 6594720.

The previous prime is 12928183. The next prime is 12928187. The reversal of 12928185 is 58182921.

It is an interprime number because it is at equal distance from previous prime (12928183) and next prime (12928187).

It is not a de Polignac number, because 12928185 - 2¹ = 12928183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12928183) 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, 5211 + ... + 7280.

It is an arithmetic number, because the mean of its divisors is an integer number (974376).

Almost surely, 2^12928185 is an apocalyptic number.

12928185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12928185 is a deficient number, since it is larger than the sum of its proper divisors (10456839).

12928185 is a wasteful number, since it uses less digits than its factorization.

12928185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12525 (or 12522 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 12928185 is about 3595.5785348119. The cubic root of 12928185 is about 234.6996918465.

The spelling of 12928185 in words is "twelve million, nine hundred twenty-eight thousand, one hundred eighty-five".