2160225 has 18 divisors (see below), whose sum is σ = 3869606. Its totient is φ = 1152000.

The previous prime is 2160217. The next prime is 2160233. The reversal of 2160225 is 5220612.

It is an interprime number because it is at equal distance from previous prime (2160217) and next prime (2160233).

It can be written as a sum of positive squares in 3 ways, for example, as 321489 + 1838736 = 567^2 + 1356^2 .

It is not a de Polignac number, because 2160225 - 2³ = 2160217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2160198 and 2160207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4576 + ... + 5025.

2^2160225 is an apocalyptic number.

2160225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2160225 is a deficient number, since it is larger than the sum of its proper divisors (1709381).

2160225 is a wasteful number, since it uses less digits than its factorization.

2160225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9617 (or 9609 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2160225 is about 1469.7703902311. The cubic root of 2160225 is about 129.2705696517.

Adding to 2160225 its reverse (5220612), we get a palindrome (7380837).

The spelling of 2160225 in words is "two million, one hundred sixty thousand, two hundred twenty-five".