12185641 has 8 divisors (see below), whose sum is σ = 13428800. Its totient is φ = 10986192.

The previous prime is 12185639. The next prime is 12185647. The reversal of 12185641 is 14658121.

12185641 is digitally balanced in base 2 and base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 12185641 - 2¹ = 12185639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12185647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10341 + ... + 11458.

It is an arithmetic number, because the mean of its divisors is an integer number (1678600).

Almost surely, 2^12185641 is an apocalyptic number.

It is an amenable number.

12185641 is a deficient number, since it is larger than the sum of its proper divisors (1243159).

12185641 is a wasteful number, since it uses less digits than its factorization.

12185641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21855.

The product of its digits is 1920, while the sum is 28.

The square root of 12185641 is about 3490.7937492782. The cubic root of 12185641 is about 230.1174006816.

It can be divided in two parts, 1218 and 5641, that added together give a cube (6859 = 19³).

The spelling of 12185641 in words is "twelve million, one hundred eighty-five thousand, six hundred forty-one".