2581315 has 8 divisors (see below), whose sum is σ = 3379248. Its totient is φ = 1877280.

The previous prime is 2581289. The next prime is 2581349. The reversal of 2581315 is 5131852.

It is a happy number.

2581315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2581315 - 2⁹ = 2580803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2581315.

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 7 ways as a sum of consecutive naturals, for example, 23412 + ... + 23521.

It is an arithmetic number, because the mean of its divisors is an integer number (422406).

2^2581315 is an apocalyptic number.

2581315 is a deficient number, since it is larger than the sum of its proper divisors (797933).

2581315 is a wasteful number, since it uses less digits than its factorization.

2581315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46949.

The product of its digits is 1200, while the sum is 25.

The square root of 2581315 is about 1606.6471298950. The cubic root of 2581315 is about 137.1766949511.

The spelling of 2581315 in words is "two million, five hundred eighty-one thousand, three hundred fifteen".