30930125 has 16 divisors (see below), whose sum is σ = 38766000. Its totient is φ = 24638400.

The previous prime is 30930121. The next prime is 30930127. The reversal of 30930125 is 52103903.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 12517444 + 18412681 = 3538^2 + 4291^2 .

It is not a de Polignac number, because 30930125 - 2² = 30930121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30930125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30930121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43271 + ... + 43979.

It is an arithmetic number, because the mean of its divisors is an integer number (2422875).

Almost surely, 2^30930125 is an apocalyptic number.

It is an amenable number.

30930125 is a deficient number, since it is larger than the sum of its proper divisors (7835875).

30930125 is an equidigital number, since it uses as much as digits as its factorization.

30930125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 30930125 is about 5561.4858626090. The cubic root of 30930125 is about 313.9018619027.

Subtracting 30930125 from its reverse (52103903), we obtain a triangular number (21173778 = T₆₅₀₇).

The spelling of 30930125 in words is "thirty million, nine hundred thirty thousand, one hundred twenty-five".