2123187 has 12 divisors (see below), whose sum is σ = 3112200. Its totient is φ = 1286560.

The previous prime is 2123167. The next prime is 2123203. The reversal of 2123187 is 7813212.

It is not a de Polignac number, because 2123187 - 2⁶ = 2123123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2123137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2562 + ... + 3287.

It is an arithmetic number, because the mean of its divisors is an integer number (259350).

2^2123187 is an apocalyptic number.

2123187 is a deficient number, since it is larger than the sum of its proper divisors (989013).

2123187 is a wasteful number, since it uses less digits than its factorization.

2123187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5874 (or 5863 counting only the distinct ones).

The product of its digits is 672, while the sum is 24.

The square root of 2123187 is about 1457.1159871472. The cubic root of 2123187 is about 128.5275065140.

Adding to 2123187 its reverse (7813212), we get a palindrome (9936399).

The spelling of 2123187 in words is "two million, one hundred twenty-three thousand, one hundred eighty-seven".