30305141 has 2 divisors, whose sum is σ = 30305142. Its totient is φ = 30305140.

The previous prime is 30305137. The next prime is 30305159. The reversal of 30305141 is 14150303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16982641 + 13322500 = 4121^2 + 3650^2 .

It is an emirp because it is prime and its reverse (14150303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30305141 - 2² = 30305137 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30005141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15152570 + 15152571.

It is an arithmetic number, because the mean of its divisors is an integer number (15152571).

Almost surely, 2^30305141 is an apocalyptic number.

It is an amenable number.

30305141 is a deficient number, since it is larger than the sum of its proper divisors (1).

30305141 is an equidigital number, since it uses as much as digits as its factorization.

30305141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30305141 is about 5505.0105358664. The cubic root of 30305141 is about 311.7731921918.

Adding to 30305141 its reverse (14150303), we get a palindrome (44455444).

The spelling of 30305141 in words is "thirty million, three hundred five thousand, one hundred forty-one".