30285125 has 16 divisors (see below), whose sum is σ = 40705392. Its totient is φ = 22363200.

The previous prime is 30285023. The next prime is 30285131. The reversal of 30285125 is 52158203.

It can be written as a sum of positive squares in 8 ways, for example, as 25623844 + 4661281 = 5062^2 + 2159^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30285125 is a prime.

It is a super-3 number, since 3×30285125³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30285094 and 30285103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7694 + ... + 10943.

It is an arithmetic number, because the mean of its divisors is an integer number (2544087).

Almost surely, 2^30285125 is an apocalyptic number.

It is an amenable number.

30285125 is a deficient number, since it is larger than the sum of its proper divisors (10420267).

30285125 is a wasteful number, since it uses less digits than its factorization.

30285125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18665 (or 18655 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 30285125 is about 5503.1922554096. The cubic root of 30285125 is about 311.7045368810.

The spelling of 30285125 in words is "thirty million, two hundred eighty-five thousand, one hundred twenty-five".