30730319 has 2 divisors, whose sum is σ = 30730320. Its totient is φ = 30730318.

The previous prime is 30730309. The next prime is 30730363. The reversal of 30730319 is 91303703.

It is a weak prime.

It is an emirp because it is prime and its reverse (91303703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30730319 - 2¹⁶ = 30664783 is a prime.

It is a super-2 number, since 2×30730319² = 1888705011683522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30730309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15365159 + 15365160.

It is an arithmetic number, because the mean of its divisors is an integer number (15365160).

Almost surely, 2^30730319 is an apocalyptic number.

30730319 is a deficient number, since it is larger than the sum of its proper divisors (1).

30730319 is an equidigital number, since it uses as much as digits as its factorization.

30730319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 26.

The square root of 30730319 is about 5543.4933931592. The cubic root of 30730319 is about 313.2244746588.

The spelling of 30730319 in words is "thirty million, seven hundred thirty thousand, three hundred nineteen".