30213215 has 8 divisors (see below), whose sum is σ = 37506240. Its totient is φ = 23336992.

The previous prime is 30213203. The next prime is 30213217. The reversal of 30213215 is 51231203.

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

It is a cyclic number.

It is not a de Polignac number, because 30213215 - 2¹⁶ = 30147679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30213193 and 30213202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213217) 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, 104039 + ... + 104328.

It is an arithmetic number, because the mean of its divisors is an integer number (4688280).

Almost surely, 2^30213215 is an apocalyptic number.

30213215 is a deficient number, since it is larger than the sum of its proper divisors (7293025).

30213215 is a wasteful number, since it uses less digits than its factorization.

30213215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208401.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30213215 is about 5496.6548918410. The cubic root of 30213215 is about 311.4576341810.

Adding to 30213215 its reverse (51231203), we get a palindrome (81444418).

The spelling of 30213215 in words is "thirty million, two hundred thirteen thousand, two hundred fifteen".