2243125 has 20 divisors (see below), whose sum is σ = 2908444. Its totient is φ = 1728000.

The previous prime is 2243123. The next prime is 2243161. The reversal of 2243125 is 5213422.

It can be written as a sum of positive squares in 10 ways, for example, as 1304164 + 938961 = 1142^2 + 969^2 .

It is not a de Polignac number, because 2243125 - 2¹ = 2243123 is a prime.

It is a Duffinian number.

2243125 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23077 + ... + 23173.

2^2243125 is an apocalyptic number.

2243125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2243125 is a deficient number, since it is larger than the sum of its proper divisors (665319).

2243125 is an frugal number, since it uses more digits than its factorization.

2243125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 139 counting only the distinct ones).

The product of its digits is 480, while the sum is 19.

The square root of 2243125 is about 1497.7065800750. The cubic root of 2243125 is about 130.9034698619.

Adding to 2243125 its reverse (5213422), we get a palindrome (7456547).

The spelling of 2243125 in words is "two million, two hundred forty-three thousand, one hundred twenty-five".