2105188 has 6 divisors (see below), whose sum is σ = 3684086. Its totient is φ = 1052592.

The previous prime is 2105183. The next prime is 2105203. The reversal of 2105188 is 8815012.

It can be written as a sum of positive squares in only one way, i.e., 1617984 + 487204 = 1272^2 + 698^2 .

It is not an unprimeable number, because it can be changed into a prime (2105183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263145 + ... + 263152.

2^2105188 is an apocalyptic number.

It is an amenable number.

2105188 is a deficient number, since it is larger than the sum of its proper divisors (1578898).

2105188 is a wasteful number, since it uses less digits than its factorization.

2105188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526301 (or 526299 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 2105188 is about 1450.9266004867. The cubic root of 2105188 is about 128.1632844546.

The spelling of 2105188 in words is "two million, one hundred five thousand, one hundred eighty-eight".