30219113 has 2 divisors, whose sum is σ = 30219114. Its totient is φ = 30219112.

The previous prime is 30219109. The next prime is 30219157. The reversal of 30219113 is 31191203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23396569 + 6822544 = 4837^2 + 2612^2 .

It is an emirp because it is prime and its reverse (31191203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30219113 - 2² = 30219109 is a prime.

It is not a weakly prime, because it can be changed into another prime (30219193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15109556 + 15109557.

It is an arithmetic number, because the mean of its divisors is an integer number (15109557).

Almost surely, 2^30219113 is an apocalyptic number.

It is an amenable number.

30219113 is a deficient number, since it is larger than the sum of its proper divisors (1).

30219113 is an equidigital number, since it uses as much as digits as its factorization.

30219113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 30219113 is about 5497.1913737835. The cubic root of 30219113 is about 311.4778996797.

The spelling of 30219113 in words is "thirty million, two hundred nineteen thousand, one hundred thirteen".