30574147 has 2 divisors, whose sum is σ = 30574148. Its totient is φ = 30574146.

The previous prime is 30574133. The next prime is 30574157. The reversal of 30574147 is 74147503.

It is a strong prime.

It is an emirp because it is prime and its reverse (74147503) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30574147 is a prime.

It is not a weakly prime, because it can be changed into another prime (30574127) 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, 15287073 + 15287074.

It is an arithmetic number, because the mean of its divisors is an integer number (15287074).

Almost surely, 2^30574147 is an apocalyptic number.

30574147 is a deficient number, since it is larger than the sum of its proper divisors (1).

30574147 is an equidigital number, since it uses as much as digits as its factorization.

30574147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 30574147 is about 5529.3893876268. The cubic root of 30574147 is about 312.6929692433.

The spelling of 30574147 in words is "thirty million, five hundred seventy-four thousand, one hundred forty-seven".