2124225 has 30 divisors (see below), whose sum is σ = 3938550. Its totient is φ = 1131840.

The previous prime is 2124223. The next prime is 2124229. The reversal of 2124225 is 5224212.

It can be written as a sum of positive squares in 3 ways, for example, as 467856 + 1656369 = 684^2 + 1287^2 .

It is not a de Polignac number, because 2124225 - 2¹ = 2124223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2124198 and 2124207.

It is not an unprimeable number, because it can be changed into a prime (2124223) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1501 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (131285).

2^2124225 is an apocalyptic number.

2124225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2124225 is a deficient number, since it is larger than the sum of its proper divisors (1814325).

2124225 is a wasteful number, since it uses less digits than its factorization.

2124225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1057 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 2124225 is about 1457.4721266631. The cubic root of 2124225 is about 128.5484482738.

Adding to 2124225 its reverse (5224212), we get a palindrome (7348437).

The spelling of 2124225 in words is "two million, one hundred twenty-four thousand, two hundred twenty-five".