30245291 has 2 divisors, whose sum is σ = 30245292. Its totient is φ = 30245290.

The previous prime is 30245273. The next prime is 30245339. The reversal of 30245291 is 19254203.

It is a weak prime.

It is an emirp because it is prime and its reverse (19254203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30245291 - 2¹⁰ = 30244267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30245291.

It is not a weakly prime, because it can be changed into another prime (30245251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15122645 + 15122646.

It is an arithmetic number, because the mean of its divisors is an integer number (15122646).

Almost surely, 2^30245291 is an apocalyptic number.

30245291 is a deficient number, since it is larger than the sum of its proper divisors (1).

30245291 is an equidigital number, since it uses as much as digits as its factorization.

30245291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 30245291 is about 5499.5718924294. The cubic root of 30245291 is about 311.5678153466.

Adding to 30245291 its reverse (19254203), we get a palindrome (49499494).

The spelling of 30245291 in words is "thirty million, two hundred forty-five thousand, two hundred ninety-one".