12120285 has 8 divisors (see below), whose sum is σ = 19392480. Its totient is φ = 6464144.

The previous prime is 12120257. The next prime is 12120293. The reversal of 12120285 is 58202121.

It is a happy number.

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 12120285 - 2⁹ = 12119773 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403995 + ... + 404024.

It is an arithmetic number, because the mean of its divisors is an integer number (2424060).

Almost surely, 2^12120285 is an apocalyptic number.

12120285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12120285 is a deficient number, since it is larger than the sum of its proper divisors (7272195).

12120285 is an equidigital number, since it uses as much as digits as its factorization.

12120285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808027.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 12120285 is about 3481.4199689207. The cubic root of 12120285 is about 229.7052620352.

The spelling of 12120285 in words is "twelve million, one hundred twenty thousand, two hundred eighty-five".