2104225 has 12 divisors (see below), whose sum is σ = 2647276. Its totient is φ = 1658880.

The previous prime is 2104217. The next prime is 2104229. The reversal of 2104225 is 5224012.

It can be written as a sum of positive squares in 6 ways, for example, as 4624 + 2099601 = 68^2 + 1449^2 .

It is not a de Polignac number, because 2104225 - 2³ = 2104217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2104199 and 2104208.

It is not an unprimeable number, because it can be changed into a prime (2104229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1249 + ... + 2401.

2^2104225 is an apocalyptic number.

2104225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2104225 is a deficient number, since it is larger than the sum of its proper divisors (543051).

2104225 is a wasteful number, since it uses less digits than its factorization.

2104225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2104225 is about 1450.5947056294. The cubic root of 2104225 is about 128.1437390795.

Adding to 2104225 its reverse (5224012), we get a palindrome (7328237).

The spelling of 2104225 in words is "two million, one hundred four thousand, two hundred twenty-five".