12185630 has 16 divisors (see below), whose sum is σ = 22888224. Its totient is φ = 4662240.

The previous prime is 12185629. The next prime is 12185639. The reversal of 12185630 is 3658121.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12185630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12185639) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26261 + ... + 26720.

It is an arithmetic number, because the mean of its divisors is an integer number (1430514).

Almost surely, 2^12185630 is an apocalyptic number.

12185630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12185630 is a deficient number, since it is larger than the sum of its proper divisors (10702594).

12185630 is a wasteful number, since it uses less digits than its factorization.

12185630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53011.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12185630 is about 3490.7921737050. The cubic root of 12185630 is about 230.1173314391.

The spelling of 12185630 in words is "twelve million, one hundred eighty-five thousand, six hundred thirty".