30403133 has 2 divisors, whose sum is σ = 30403134. Its totient is φ = 30403132.

The previous prime is 30403127. The next prime is 30403141. The reversal of 30403133 is 33130403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25030009 + 5373124 = 5003^2 + 2318^2 .

It is an emirp because it is prime and its reverse (33130403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30403133 - 2⁴ = 30403117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30403103) 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, 15201566 + 15201567.

It is an arithmetic number, because the mean of its divisors is an integer number (15201567).

Almost surely, 2^30403133 is an apocalyptic number.

It is an amenable number.

30403133 is a deficient number, since it is larger than the sum of its proper divisors (1).

30403133 is an equidigital number, since it uses as much as digits as its factorization.

30403133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 30403133 is about 5513.9036081528. The cubic root of 30403133 is about 312.1088713029.

Adding to 30403133 its reverse (33130403), we get a palindrome (63533536).

The spelling of 30403133 in words is "thirty million, four hundred three thousand, one hundred thirty-three".