30718069 has 2 divisors, whose sum is σ = 30718070. Its totient is φ = 30718068.

The previous prime is 30718067. The next prime is 30718097. The reversal of 30718069 is 96081703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30393169 + 324900 = 5513^2 + 570^2 .

It is an emirp because it is prime and its reverse (96081703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30718069 - 2¹ = 30718067 is a prime.

It is a super-2 number, since 2×30718069² = 1887199526177522, which contains 22 as substring.

Together with 30718067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30718067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15359034 + 15359035.

It is an arithmetic number, because the mean of its divisors is an integer number (15359035).

Almost surely, 2^30718069 is an apocalyptic number.

It is an amenable number.

30718069 is a deficient number, since it is larger than the sum of its proper divisors (1).

30718069 is an equidigital number, since it uses as much as digits as its factorization.

30718069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 30718069 is about 5542.3883840814. The cubic root of 30718069 is about 313.1828489951.

The spelling of 30718069 in words is "thirty million, seven hundred eighteen thousand, sixty-nine".