12146005 has 8 divisors (see below), whose sum is σ = 14656824. Its totient is φ = 9662400.

The previous prime is 12145993. The next prime is 12146023. The reversal of 12146005 is 50064121.

12146005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 762129 + 11383876 = 873^2 + 3374^2 .

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

It is not a de Polignac number, because 12146005 - 2⁷ = 12145877 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

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, 5806 + ... + 7615.

It is an arithmetic number, because the mean of its divisors is an integer number (1832103).

Almost surely, 2^12146005 is an apocalyptic number.

It is an amenable number.

12146005 is a deficient number, since it is larger than the sum of its proper divisors (2510819).

12146005 is a wasteful number, since it uses less digits than its factorization.

12146005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13607.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 12146005 is about 3485.1119063812. Note that the first 3 decimals coincide. The cubic root of 12146005 is about 229.8676301972.

The spelling of 12146005 in words is "twelve million, one hundred forty-six thousand, five".