12286145 has 8 divisors (see below), whose sum is σ = 14889960. Its totient is φ = 9731200.

The previous prime is 12286139. The next prime is 12286147. The reversal of 12286145 is 54168221.

12286145 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 6091024 + 6195121 = 2468^2 + 2489^2 .

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

It is not a de Polignac number, because 12286145 - 2⁶ = 12286081 is a prime.

It is a super-2 number, since 2×12286145² = 301898717922050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12286147) 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, 11660 + ... + 12669.

It is an arithmetic number, because the mean of its divisors is an integer number (1861245).

Almost surely, 2^12286145 is an apocalyptic number.

It is an amenable number.

12286145 is a deficient number, since it is larger than the sum of its proper divisors (2603815).

12286145 is a wasteful number, since it uses less digits than its factorization.

12286145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24435.

The product of its digits is 3840, while the sum is 29.

The square root of 12286145 is about 3505.1597681133. The cubic root of 12286145 is about 230.7483188031.

The spelling of 12286145 in words is "twelve million, two hundred eighty-six thousand, one hundred forty-five".