2281125 has 64 divisors (see below), whose sum is σ = 4792320. Its totient is φ = 936000.

The previous prime is 2281109. The next prime is 2281127. The reversal of 2281125 is 5211822.

It is a happy number.

2281125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2281125 - 2⁴ = 2281109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28836 + ... + 28914.

It is an arithmetic number, because the mean of its divisors is an integer number (74880).

2^2281125 is an apocalyptic number.

2281125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2281125 is an abundant number, since it is smaller than the sum of its proper divisors (2511195).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2281125 is a wasteful number, since it uses less digits than its factorization.

2281125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 105 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 2281125 is about 1510.3393658380. The cubic root of 2281125 is about 131.6385312597.

Adding to 2281125 its reverse (5211822), we get a palindrome (7492947).

The spelling of 2281125 in words is "two million, two hundred eighty-one thousand, one hundred twenty-five".