30332209 has 2 divisors, whose sum is σ = 30332210. Its totient is φ = 30332208.

The previous prime is 30332201. The next prime is 30332213. The reversal of 30332209 is 90223303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23814400 + 6517809 = 4880^2 + 2553^2 .

It is an emirp because it is prime and its reverse (90223303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30332209 - 2³ = 30332201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30332209.

It is not a weakly prime, because it can be changed into another prime (30332201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15166104 + 15166105.

It is an arithmetic number, because the mean of its divisors is an integer number (15166105).

Almost surely, 2^30332209 is an apocalyptic number.

It is an amenable number.

30332209 is a deficient number, since it is larger than the sum of its proper divisors (1).

30332209 is an equidigital number, since it uses as much as digits as its factorization.

30332209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 30332209 is about 5507.4684747169. The cubic root of 30332209 is about 311.8659879485.

The spelling of 30332209 in words is "thirty million, three hundred thirty-two thousand, two hundred nine".