12856190 has 8 divisors (see below), whose sum is σ = 23141160. Its totient is φ = 5142472.

The previous prime is 12856187. The next prime is 12856201. The reversal of 12856190 is 9165821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12856190² = 330563242632200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642800 + ... + 642819.

It is an arithmetic number, because the mean of its divisors is an integer number (2892645).

Almost surely, 2^12856190 is an apocalyptic number.

12856190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12856190 is a deficient number, since it is larger than the sum of its proper divisors (10284970).

12856190 is a wasteful number, since it uses less digits than its factorization.

12856190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285626.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 12856190 is about 3585.5529559609. The cubic root of 12856190 is about 234.2632122308.

The spelling of 12856190 in words is "twelve million, eight hundred fifty-six thousand, one hundred ninety".