30122717 has 2 divisors, whose sum is σ = 30122718. Its totient is φ = 30122716.

The previous prime is 30122707. The next prime is 30122737. The reversal of 30122717 is 71722103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20016676 + 10106041 = 4474^2 + 3179^2 .

It is a cyclic number.

It is not a de Polignac number, because 30122717 - 2⁸ = 30122461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30122692 and 30122701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30122707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061358 + 15061359.

It is an arithmetic number, because the mean of its divisors is an integer number (15061359).

Almost surely, 2^30122717 is an apocalyptic number.

It is an amenable number.

30122717 is a deficient number, since it is larger than the sum of its proper divisors (1).

30122717 is an equidigital number, since it uses as much as digits as its factorization.

30122717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 30122717 is about 5488.4166204835. The cubic root of 30122717 is about 311.1463522674.

The spelling of 30122717 in words is "thirty million, one hundred twenty-two thousand, seven hundred seventeen".