12120386 has 8 divisors (see below), whose sum is σ = 18672060. Its totient is φ = 5896368.

The previous prime is 12120343. The next prime is 12120391. The reversal of 12120386 is 68302121.

It can be written as a sum of positive squares in 2 ways, for example, as 12117361 + 3025 = 3481^2 + 55^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81821 + ... + 81968.

Almost surely, 2^12120386 is an apocalyptic number.

12120386 is a deficient number, since it is larger than the sum of its proper divisors (6551674).

12120386 is a wasteful number, since it uses less digits than its factorization.

12120386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163828.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 12120386 is about 3481.4344744659. The cubic root of 12120386 is about 229.7059000886.

The spelling of 12120386 in words is "twelve million, one hundred twenty thousand, three hundred eighty-six".