30641147 has 2 divisors, whose sum is σ = 30641148. Its totient is φ = 30641146.

The previous prime is 30641137. The next prime is 30641159. The reversal of 30641147 is 74114603.

It is a weak prime.

It is an emirp because it is prime and its reverse (74114603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30641147 - 2⁸ = 30640891 is a prime.

It is not a weakly prime, because it can be changed into another prime (30641137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15320573 + 15320574.

It is an arithmetic number, because the mean of its divisors is an integer number (15320574).

Almost surely, 2^30641147 is an apocalyptic number.

30641147 is a deficient number, since it is larger than the sum of its proper divisors (1).

30641147 is an equidigital number, since it uses as much as digits as its factorization.

30641147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 30641147 is about 5535.4446072560. Note that the first 3 decimals coincide. The cubic root of 30641147 is about 312.9212137576.

The spelling of 30641147 in words is "thirty million, six hundred forty-one thousand, one hundred forty-seven".