4109425 has 6 divisors (see below), whose sum is σ = 5095718. Its totient is φ = 3287520.

The previous prime is 4109423. The next prime is 4109429. The reversal of 4109425 is 5249014.

It can be written as a sum of positive squares in 3 ways, for example, as 314721 + 3794704 = 561^2 + 1948^2 .

It is not a de Polignac number, because 4109425 - 2¹ = 4109423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 164377 = 4109425 / (4 + 1 + 0 + 9 + 4 + 2 + 5).

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4109425.

It is not an unprimeable number, because it can be changed into a prime (4109423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82164 + ... + 82213.

Almost surely, 2^4109425 is an apocalyptic number.

It is an amenable number.

4109425 is a deficient number, since it is larger than the sum of its proper divisors (986293).

4109425 is a wasteful number, since it uses less digits than its factorization.

4109425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164387 (or 164382 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 4109425 is about 2027.1716750192. The cubic root of 4109425 is about 160.1746140553.

The spelling of 4109425 in words is "four million, one hundred nine thousand, four hundred twenty-five".