30102217 has 4 divisors (see below), whose sum is σ = 30174480. Its totient is φ = 30029956.

The previous prime is 30102211. The next prime is 30102221. The reversal of 30102217 is 71220103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30102217 - 2⁷ = 30102089 is a prime.

It is a super-2 number, since 2×30102217² = 1812286936630178, which contains 22 as substring.

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 30102217.

It is not an unprimeable number, because it can be changed into a prime (30102211) 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 3 ways as a sum of consecutive naturals, for example, 35503 + ... + 36340.

It is an arithmetic number, because the mean of its divisors is an integer number (7543620).

Almost surely, 2^30102217 is an apocalyptic number.

It is an amenable number.

30102217 is a deficient number, since it is larger than the sum of its proper divisors (72263).

30102217 is an equidigital number, since it uses as much as digits as its factorization.

30102217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72262.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 30102217 is about 5486.5487330379. The cubic root of 30102217 is about 311.0757527513.

The spelling of 30102217 in words is "thirty million, one hundred two thousand, two hundred seventeen".