2187105 has 8 divisors (see below), whose sum is σ = 3499392. Its totient is φ = 1166448.

The previous prime is 2187103. The next prime is 2187113. The reversal of 2187105 is 5017812.

2187105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2187105 - 2¹ = 2187103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2187103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 72889 + ... + 72918.

It is an arithmetic number, because the mean of its divisors is an integer number (437424).

2^2187105 is an apocalyptic number.

It is an amenable number.

2187105 is a deficient number, since it is larger than the sum of its proper divisors (1312287).

2187105 is a wasteful number, since it uses less digits than its factorization.

2187105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145815.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 2187105 is about 1478.8864053740. The cubic root of 2187105 is about 129.8045386086.

The spelling of 2187105 in words is "two million, one hundred eighty-seven thousand, one hundred five".