30125173 has 16 divisors (see below), whose sum is σ = 34546176. Its totient is φ = 26023680.

The previous prime is 30125111. The next prime is 30125191. The reversal of 30125173 is 37152103.

It is a cyclic number.

It is not a de Polignac number, because 30125173 - 2¹⁷ = 29994101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30125873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59640 + ... + 60142.

It is an arithmetic number, because the mean of its divisors is an integer number (2159136).

Almost surely, 2^30125173 is an apocalyptic number.

It is an amenable number.

30125173 is a deficient number, since it is larger than the sum of its proper divisors (4421003).

30125173 is a wasteful number, since it uses less digits than its factorization.

30125173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 30125173 is about 5488.6403598706. The cubic root of 30125173 is about 311.1548082849.

Adding to 30125173 its reverse (37152103), we get a palindrome (67277276).

The spelling of 30125173 in words is "thirty million, one hundred twenty-five thousand, one hundred seventy-three".