30322147 has 2 divisors, whose sum is σ = 30322148. Its totient is φ = 30322146.

The previous prime is 30322121. The next prime is 30322207. The reversal of 30322147 is 74122303.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30322147 - 2²³ = 21933539 is a prime.

It is not a weakly prime, because it can be changed into another prime (30322447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15161073 + 15161074.

It is an arithmetic number, because the mean of its divisors is an integer number (15161074).

Almost surely, 2^30322147 is an apocalyptic number.

30322147 is a deficient number, since it is larger than the sum of its proper divisors (1).

30322147 is an equidigital number, since it uses as much as digits as its factorization.

30322147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 30322147 is about 5506.5549121025. The cubic root of 30322147 is about 311.8314993886.

The spelling of 30322147 in words is "thirty million, three hundred twenty-two thousand, one hundred forty-seven".