2231125 has 16 divisors (see below), whose sum is σ = 3000816. Its totient is φ = 1646400.

The previous prime is 2231107. The next prime is 2231129. The reversal of 2231125 is 5211322.

It can be written as a sum of positive squares in 8 ways, for example, as 443556 + 1787569 = 666^2 + 1337^2 .

It is not a de Polignac number, because 2231125 - 2⁵ = 2231093 is a prime.

It is a super-3 number, since 3×2231125³ = 33319077017865234375, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231099 and 2231108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939 + ... + 2311.

It is an arithmetic number, because the mean of its divisors is an integer number (187551).

2^2231125 is an apocalyptic number.

2231125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2231125 is a deficient number, since it is larger than the sum of its proper divisors (769691).

2231125 is a wasteful number, since it uses less digits than its factorization.

2231125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401 (or 1391 counting only the distinct ones).

The product of its digits is 120, while the sum is 16.

The square root of 2231125 is about 1493.6950826725. The cubic root of 2231125 is about 130.6696218210.

Adding to 2231125 its reverse (5211322), we get a palindrome (7442447).

The spelling of 2231125 in words is "two million, two hundred thirty-one thousand, one hundred twenty-five".