2565145 has 8 divisors (see below), whose sum is σ = 3358080. Its totient is φ = 1865520.

The previous prime is 2565139. The next prime is 2565149. The reversal of 2565145 is 5415652.

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

It is not a de Polignac number, because 2565145 - 2⁹ = 2564633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2565149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23265 + ... + 23374.

It is an arithmetic number, because the mean of its divisors is an integer number (419760).

2^2565145 is an apocalyptic number.

It is an amenable number.

2565145 is a deficient number, since it is larger than the sum of its proper divisors (792935).

2565145 is a wasteful number, since it uses less digits than its factorization.

2565145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46655.

The product of its digits is 6000, while the sum is 28.

The square root of 2565145 is about 1601.6070054792. The cubic root of 2565145 is about 136.8896584316.

The spelling of 2565145 in words is "two million, five hundred sixty-five thousand, one hundred forty-five".