30125 has 8 divisors (see below), whose sum is σ = 37752. Its totient is φ = 24000.

The previous prime is 30119. The next prime is 30133. The reversal of 30125 is 52103.

It can be written as a sum of positive squares in 4 ways, for example, as 196 + 29929 = 14^2 + 173^2 .

It is not a de Polignac number, because 30125 - 2⁴ = 30109 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5 + ... + 245.

It is an arithmetic number, because the mean of its divisors is an integer number (4719).

2³⁰¹²⁵ is an apocalyptic number.

It is an amenable number.

30125 is a deficient number, since it is larger than the sum of its proper divisors (7627).

30125 is an equidigital number, since it uses as much as digits as its factorization.

30125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 30125 is about 173.5655495771. The cubic root of 30125 is about 31.1154212660.

Adding to 30125 its reverse (52103), we get a palindrome (82228).

The spelling of 30125 in words is "thirty thousand, one hundred twenty-five".