2111125 has 8 divisors (see below), whose sum is σ = 2634840. Its totient is φ = 1688800.

The previous prime is 2111107. The next prime is 2111129. The reversal of 2111125 is 5211112.

It can be written as a sum of positive squares in 4 ways, for example, as 508369 + 1602756 = 713^2 + 1266^2 .

It is not a de Polignac number, because 2111125 - 2⁵ = 2111093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111129) 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, 8320 + ... + 8569.

It is an arithmetic number, because the mean of its divisors is an integer number (329355).

2^2111125 is an apocalyptic number.

2111125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2111125 is a deficient number, since it is larger than the sum of its proper divisors (523715).

2111125 is an equidigital number, since it uses as much as digits as its factorization.

2111125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16904 (or 16894 counting only the distinct ones).

The product of its digits is 20, while the sum is 13.

The square root of 2111125 is about 1452.9710940002. The cubic root of 2111125 is about 128.2836523651.

Subtracting from 2111125 its sum of digits (13), we obtain a palindrome (2111112).

Adding to 2111125 its reverse (5211112), we get a palindrome (7322237).

The spelling of 2111125 in words is "two million, one hundred eleven thousand, one hundred twenty-five".