2665315 has 4 divisors (see below), whose sum is σ = 3198384. Its totient is φ = 2132248.

The previous prime is 2665291. The next prime is 2665319. The reversal of 2665315 is 5135662.

2665315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2665315 - 2¹¹ = 2663267 is a prime.

It is a Duffinian number.

2665315 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2665319) by changing a digit.

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, 266527 + ... + 266536.

It is an arithmetic number, because the mean of its divisors is an integer number (799596).

2^2665315 is an apocalyptic number.

2665315 is a deficient number, since it is larger than the sum of its proper divisors (533069).

2665315 is an equidigital number, since it uses as much as digits as its factorization.

2665315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533068.

The product of its digits is 5400, while the sum is 28.

The square root of 2665315 is about 1632.5792476937. The cubic root of 2665315 is about 138.6488210773.

It can be divided in two parts, 26 and 65315, that added together give a triangular number (65341 = T₃₆₁).

The spelling of 2665315 in words is "two million, six hundred sixty-five thousand, three hundred fifteen".