30243125 has 40 divisors (see below), whose sum is σ = 42511392. Its totient is φ = 21320000.

The previous prime is 30243121. The next prime is 30243127. The reversal of 30243125 is 52134203.

It is a happy number.

It is not a de Polignac number, because 30243125 - 2² = 30243121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30243097 and 30243106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243121) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 364334 + ... + 364416.

Almost surely, 2^30243125 is an apocalyptic number.

It is an amenable number.

30243125 is a deficient number, since it is larger than the sum of its proper divisors (12268267).

30243125 is an equidigital number, since it uses as much as digits as its factorization.

30243125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30243125 is about 5499.3749644846. The cubic root of 30243125 is about 311.5603775827.

Adding to 30243125 its reverse (52134203), we get a palindrome (82377328).

The spelling of 30243125 in words is "thirty million, two hundred forty-three thousand, one hundred twenty-five".