2187205 has 16 divisors (see below), whose sum is σ = 2755584. Its totient is φ = 1664640.

The previous prime is 2187197. The next prime is 2187217. The reversal of 2187205 is 5027812.

It is not a de Polignac number, because 2187205 - 2³ = 2187197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2187205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15897 + ... + 16033.

It is an arithmetic number, because the mean of its divisors is an integer number (172224).

2^2187205 is an apocalyptic number.

It is an amenable number.

2187205 is a deficient number, since it is larger than the sum of its proper divisors (568379).

2187205 is a wasteful number, since it uses less digits than its factorization.

2187205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2187205 is about 1478.9202142104. The cubic root of 2187205 is about 129.8065169096.

The spelling of 2187205 in words is "two million, one hundred eighty-seven thousand, two hundred five".