12002105 has 8 divisors (see below), whose sum is σ = 14440200. Its totient is φ = 9576576.

The previous prime is 12002093. The next prime is 12002147. The reversal of 12002105 is 50120021.

It can be written as a sum of positive squares in 4 ways, for example, as 1263376 + 10738729 = 1124^2 + 3277^2 .

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 12002105 - 2¹⁰ = 12001081 is a prime.

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, 890 + ... + 4979.

It is an arithmetic number, because the mean of its divisors is an integer number (1805025).

Almost surely, 2^12002105 is an apocalyptic number.

It is an amenable number.

12002105 is a deficient number, since it is larger than the sum of its proper divisors (2438095).

12002105 is an equidigital number, since it uses as much as digits as its factorization.

12002105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 12002105 is about 3464.4054323938. The cubic root of 12002105 is about 228.9562345251.

Adding to 12002105 its reverse (50120021), we get a palindrome (62122126).

The spelling of 12002105 in words is "twelve million, two thousand, one hundred five".