4145305 has 16 divisors (see below), whose sum is σ = 5184144. Its totient is φ = 3179520.

The previous prime is 4145299. The next prime is 4145333. The reversal of 4145305 is 5035414.

4145305 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 8 ways, for example, as 944784 + 3200521 = 972^2 + 1789^2 .

It is not a de Polignac number, because 4145305 - 2⁷ = 4145177 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 14827 + ... + 15103.

It is an arithmetic number, because the mean of its divisors is an integer number (324009).

Almost surely, 2^4145305 is an apocalyptic number.

It is an amenable number.

4145305 is a deficient number, since it is larger than the sum of its proper divisors (1038839).

4145305 is a wasteful number, since it uses less digits than its factorization.

4145305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 4145305 is about 2036.0022102149. The cubic root of 4145305 is about 160.6394333147.

The spelling of 4145305 in words is "four million, one hundred forty-five thousand, three hundred five".