30503197 has 2 divisors, whose sum is σ = 30503198. Its totient is φ = 30503196.

The previous prime is 30503159. The next prime is 30503251. The reversal of 30503197 is 79130503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30239001 + 264196 = 5499^2 + 514^2 .

It is a cyclic number.

It is not a de Polignac number, because 30503197 - 2¹⁹ = 29978909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30503897) 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, 15251598 + 15251599.

It is an arithmetic number, because the mean of its divisors is an integer number (15251599).

Almost surely, 2^30503197 is an apocalyptic number.

It is an amenable number.

30503197 is a deficient number, since it is larger than the sum of its proper divisors (1).

30503197 is an equidigital number, since it uses as much as digits as its factorization.

30503197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 30503197 is about 5522.9699437893. The cubic root of 30503197 is about 312.4509047140.

The spelling of 30503197 in words is "thirty million, five hundred three thousand, one hundred ninety-seven".