30197592209 has 4 divisors (see below), whose sum is σ = 30213479220. Its totient is φ = 30181705200.

The previous prime is 30197592179. The next prime is 30197592233. The reversal of 30197592209 is 90229579103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90229579103 = 131 ⋅688775413.

It can be written as a sum of positive squares in 2 ways, for example, as 12248291584 + 17949300625 = 110672^2 + 133975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30197592209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30197592289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7940654 + ... + 7944455.

It is an arithmetic number, because the mean of its divisors is an integer number (7553369805).

Almost surely, 2^30197592209 is an apocalyptic number.

It is an amenable number.

30197592209 is a deficient number, since it is larger than the sum of its proper divisors (15887011).

30197592209 is a wasteful number, since it uses less digits than its factorization.

30197592209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15887010.

The product of its (nonzero) digits is 306180, while the sum is 47.

The spelling of 30197592209 in words is "thirty billion, one hundred ninety-seven million, five hundred ninety-two thousand, two hundred nine".