4081225 has 6 divisors (see below), whose sum is σ = 5060750. Its totient is φ = 3264960.

The previous prime is 4081213. The next prime is 4081229. The reversal of 4081225 is 5221804.

4081225 = 1428² + 1429².

4081225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 944784 + 3136441 = 972^2 + 1771^2 .

It is not a de Polignac number, because 4081225 - 2¹³ = 4073033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4081196 and 4081205.

It is not an unprimeable number, because it can be changed into a prime (4081229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81600 + ... + 81649.

Almost surely, 2^4081225 is an apocalyptic number.

4081225 is the 1429-th centered square number.

It is an amenable number.

4081225 is a deficient number, since it is larger than the sum of its proper divisors (979525).

4081225 is a wasteful number, since it uses less digits than its factorization.

4081225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163259 (or 163254 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 4081225 is about 2020.2041975998. The cubic root of 4081225 is about 159.8073854032.

The spelling of 4081225 in words is "four million, eighty-one thousand, two hundred twenty-five".