30061147 has 2 divisors, whose sum is σ = 30061148. Its totient is φ = 30061146.

The previous prime is 30061121. The next prime is 30061177. The reversal of 30061147 is 74116003.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30061147 is a prime.

It is not a weakly prime, because it can be changed into another prime (30061177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15030573 + 15030574.

It is an arithmetic number, because the mean of its divisors is an integer number (15030574).

Almost surely, 2^30061147 is an apocalyptic number.

30061147 is a deficient number, since it is larger than the sum of its proper divisors (1).

30061147 is an equidigital number, since it uses as much as digits as its factorization.

30061147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 30061147 is about 5482.8046654974. The cubic root of 30061147 is about 310.9342161568.

The spelling of 30061147 in words is "thirty million, sixty-one thousand, one hundred forty-seven".