12890185 has 24 divisors (see below), whose sum is σ = 19633536. Its totient is φ = 8033760.

The previous prime is 12890179. The next prime is 12890191. The reversal of 12890185 is 58109821.

It is an interprime number because it is at equal distance from previous prime (12890179) and next prime (12890191).

It is not a de Polignac number, because 12890185 - 2³ = 12890177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12890185.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304 + ... + 5086.

It is an arithmetic number, because the mean of its divisors is an integer number (818064).

Almost surely, 2^12890185 is an apocalyptic number.

It is an amenable number.

12890185 is a deficient number, since it is larger than the sum of its proper divisors (6743351).

12890185 is a wasteful number, since it uses less digits than its factorization.

12890185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813 (or 4806 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 12890185 is about 3590.2903782285. The cubic root of 12890185 is about 234.4695141181.

The spelling of 12890185 in words is "twelve million, eight hundred ninety thousand, one hundred eighty-five".