30118147 has 2 divisors, whose sum is σ = 30118148. Its totient is φ = 30118146.

The previous prime is 30118093. The next prime is 30118159. The reversal of 30118147 is 74181103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30118147 - 2¹⁹ = 29593859 is a prime.

It is not a weakly prime, because it can be changed into another prime (30118547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15059073 + 15059074.

It is an arithmetic number, because the mean of its divisors is an integer number (15059074).

Almost surely, 2^30118147 is an apocalyptic number.

30118147 is a deficient number, since it is larger than the sum of its proper divisors (1).

30118147 is an equidigital number, since it uses as much as digits as its factorization.

30118147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 30118147 is about 5488.0002733236. Note that the first 3 decimals coincide. The cubic root of 30118147 is about 311.1306165161.

The spelling of 30118147 in words is "thirty million, one hundred eighteen thousand, one hundred forty-seven".