4160725 has 6 divisors (see below), whose sum is σ = 5159330. Its totient is φ = 3328560.

The previous prime is 4160719. The next prime is 4160729. The reversal of 4160725 is 5270614.

It can be written as a sum of positive squares in 3 ways, for example, as 603729 + 3556996 = 777^2 + 1886^2 .

It is not a de Polignac number, because 4160725 - 2²¹ = 2063573 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: 166429 = 4160725 / (4 + 1 + 6 + 0 + 7 + 2 + 5).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4160725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4160729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83190 + ... + 83239.

Almost surely, 2^4160725 is an apocalyptic number.

It is an amenable number.

4160725 is a deficient number, since it is larger than the sum of its proper divisors (998605).

4160725 is a wasteful number, since it uses less digits than its factorization.

4160725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166439 (or 166434 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 4160725 is about 2039.7855279416. The cubic root of 4160725 is about 160.8383728335.

The spelling of 4160725 in words is "four million, one hundred sixty thousand, seven hundred twenty-five".