30330173 has 2 divisors, whose sum is σ = 30330174. Its totient is φ = 30330172.

The previous prime is 30330161. The next prime is 30330211. The reversal of 30330173 is 37103303.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22024249 + 8305924 = 4693^2 + 2882^2 .

It is an emirp because it is prime and its reverse (37103303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30330173 - 2¹² = 30326077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30330133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15165086 + 15165087.

It is an arithmetic number, because the mean of its divisors is an integer number (15165087).

Almost surely, 2^30330173 is an apocalyptic number.

It is an amenable number.

30330173 is a deficient number, since it is larger than the sum of its proper divisors (1).

30330173 is an equidigital number, since it uses as much as digits as its factorization.

30330173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 20.

The square root of 30330173 is about 5507.2836317008. The cubic root of 30330173 is about 311.8590099606.

Adding to 30330173 its reverse (37103303), we get a palindrome (67433476).

It can be divided in two parts, 30330 and 173, that added together give a palindrome (30503).

The spelling of 30330173 in words is "thirty million, three hundred thirty thousand, one hundred seventy-three".