30085215 has 8 divisors (see below), whose sum is σ = 48136368. Its totient is φ = 16045440.

The previous prime is 30085213. The next prime is 30085301. The reversal of 30085215 is 51258003.

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

It is not a de Polignac number, because 30085215 - 2¹ = 30085213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30085213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002826 + ... + 1002855.

It is an arithmetic number, because the mean of its divisors is an integer number (6017046).

Almost surely, 2^30085215 is an apocalyptic number.

30085215 is a deficient number, since it is larger than the sum of its proper divisors (18051153).

30085215 is a wasteful number, since it uses less digits than its factorization.

30085215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005689.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 30085215 is about 5484.9990884229. Note that the first 3 decimals coincide. The cubic root of 30085215 is about 311.0171756039.

The spelling of 30085215 in words is "thirty million, eighty-five thousand, two hundred fifteen".