2568145 has 8 divisors (see below), whose sum is σ = 3094056. Its totient is φ = 2046336.

The previous prime is 2568131. The next prime is 2568169. The reversal of 2568145 is 5418652.

It can be written as a sum of positive squares in 4 ways, for example, as 208849 + 2359296 = 457^2 + 1536^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2568145 - 2⁹ = 2567633 is a prime.

It is a Duffinian number.

2568145 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 589 + ... + 2341.

It is an arithmetic number, because the mean of its divisors is an integer number (386757).

2^2568145 is an apocalyptic number.

It is an amenable number.

2568145 is a deficient number, since it is larger than the sum of its proper divisors (525911).

2568145 is a wasteful number, since it uses less digits than its factorization.

2568145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051.

The product of its digits is 9600, while the sum is 31.

The square root of 2568145 is about 1602.5432911469. The cubic root of 2568145 is about 136.9430029123.

The spelling of 2568145 in words is "two million, five hundred sixty-eight thousand, one hundred forty-five".