2101187 has 8 divisors (see below), whose sum is σ = 2327232. Its totient is φ = 1881000.

The previous prime is 2101181. The next prime is 2101189. The reversal of 2101187 is 7811012.

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

It is not a de Polignac number, because 2101187 - 2⁶ = 2101123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689 + ... + 2162.

It is an arithmetic number, because the mean of its divisors is an integer number (290904).

2^2101187 is an apocalyptic number.

2101187 is a deficient number, since it is larger than the sum of its proper divisors (226045).

2101187 is a wasteful number, since it uses less digits than its factorization.

2101187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 2101187 is about 1449.5471706709. The cubic root of 2101187 is about 128.0820396918.

Adding to 2101187 its reverse (7811012), we get a palindrome (9912199).

The spelling of 2101187 in words is "two million, one hundred one thousand, one hundred eighty-seven".