3005215 has 4 divisors (see below), whose sum is σ = 3606264. Its totient is φ = 2404168.

The previous prime is 3005213. The next prime is 3005221. The reversal of 3005215 is 5125003.

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 3005215 - 2¹ = 3005213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3005213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300517 + ... + 300526.

It is an arithmetic number, because the mean of its divisors is an integer number (901566).

Almost surely, 2^3005215 is an apocalyptic number.

3005215 is a deficient number, since it is larger than the sum of its proper divisors (601049).

3005215 is an equidigital number, since it uses as much as digits as its factorization.

3005215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601048.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 3005215 is about 1733.5555947243. Note that the first 4 decimals coincide. The cubic root of 3005215 is about 144.3084790032.

The spelling of 3005215 in words is "three million, five thousand, two hundred fifteen".