2540065 has 8 divisors (see below), whose sum is σ = 3325248. Its totient is φ = 1847280.

The previous prime is 2540033. The next prime is 2540071. The reversal of 2540065 is 5600452.

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

It is not a de Polignac number, because 2540065 - 2⁵ = 2540033 is a prime.

It is a Duffinian number.

2540065 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23037 + ... + 23146.

It is an arithmetic number, because the mean of its divisors is an integer number (415656).

2^2540065 is an apocalyptic number.

It is an amenable number.

2540065 is a deficient number, since it is larger than the sum of its proper divisors (785183).

2540065 is a wasteful number, since it uses less digits than its factorization.

2540065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46199.

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

The square root of 2540065 is about 1593.7581372341. The cubic root of 2540065 is about 136.4420628323.

The spelling of 2540065 in words is "two million, five hundred forty thousand, sixty-five".