4645225 has 12 divisors (see below), whose sum is σ = 6203596. Its totient is φ = 3430080.

The previous prime is 4645187. The next prime is 4645231. The reversal of 4645225 is 5225464.

It can be written as a sum of positive squares in 6 ways, for example, as 1929321 + 2715904 = 1389^2 + 1648^2 .

It is not a de Polignac number, because 4645225 - 2¹⁹ = 4120937 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

4645225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4645193 and 4645202.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6822 + ... + 7471.

Almost surely, 2^4645225 is an apocalyptic number.

It is an amenable number.

4645225 is a deficient number, since it is larger than the sum of its proper divisors (1558371).

4645225 is a wasteful number, since it uses less digits than its factorization.

4645225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14316 (or 14311 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 4645225 is about 2155.2784042903. The cubic root of 4645225 is about 166.8536013652.

The spelling of 4645225 in words is "four million, six hundred forty-five thousand, two hundred twenty-five".