30032173 has 2 divisors, whose sum is σ = 30032174. Its totient is φ = 30032172.

The previous prime is 30032161. The next prime is 30032203. The reversal of 30032173 is 37123003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16621929 + 13410244 = 4077^2 + 3662^2 .

It is a cyclic number.

It is not a de Polignac number, because 30032173 - 2¹⁷ = 29901101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30032173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30032113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15016086 + 15016087.

It is an arithmetic number, because the mean of its divisors is an integer number (15016087).

Almost surely, 2^30032173 is an apocalyptic number.

It is an amenable number.

30032173 is a deficient number, since it is larger than the sum of its proper divisors (1).

30032173 is an equidigital number, since it uses as much as digits as its factorization.

30032173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 30032173 is about 5480.1617676853. The cubic root of 30032173 is about 310.8342875687.

Adding to 30032173 its reverse (37123003), we get a palindrome (67155176).

The spelling of 30032173 in words is "thirty million, thirty-two thousand, one hundred seventy-three".