4048145 has 4 divisors (see below), whose sum is σ = 4857780. Its totient is φ = 3238512.

The previous prime is 4048129. The next prime is 4048171. The reversal of 4048145 is 5418404.

4048145 = T₁₂₇₀ + T₁₂₇₁ + ... + T₁₂₇₄.

4048145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 2012²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1459264 + 2588881 = 1208^2 + 1609^2 .

It is a cyclic number.

It is not a de Polignac number, because 4048145 - 2⁴ = 4048129 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 404810 + ... + 404819.

It is an arithmetic number, because the mean of its divisors is an integer number (1214445).

Almost surely, 2^4048145 is an apocalyptic number.

It is an amenable number.

4048145 is a deficient number, since it is larger than the sum of its proper divisors (809635).

4048145 is an equidigital number, since it uses as much as digits as its factorization.

4048145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809634.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 4048145 is about 2012.0002485089. Note that the first 3 decimals coincide. The cubic root of 4048145 is about 159.3744454678.

The spelling of 4048145 in words is "four million, forty-eight thousand, one hundred forty-five".