12730186 has 8 divisors (see below), whose sum is σ = 21823200. Its totient is φ = 5455788.

The previous prime is 12730169. The next prime is 12730283. The reversal of 12730186 is 68103721.

12730186 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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

12730186 is strictly pandigital in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454636 + ... + 454663.

It is an arithmetic number, because the mean of its divisors is an integer number (2727900).

Almost surely, 2^12730186 is an apocalyptic number.

12730186 is a deficient number, since it is larger than the sum of its proper divisors (9093014).

12730186 is an equidigital number, since it uses as much as digits as its factorization.

12730186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909308.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12730186 is about 3567.9386205483. The cubic root of 12730186 is about 233.4953573077.

The spelling of 12730186 in words is "twelve million, seven hundred thirty thousand, one hundred eighty-six".