30017125 has 16 divisors (see below), whose sum is σ = 38381616. Its totient is φ = 23424000.

The previous prime is 30017123. The next prime is 30017129. The reversal of 30017125 is 52171003.

It can be written as a sum of positive squares in 8 ways, for example, as 9928801 + 20088324 = 3151^2 + 4482^2 .

It is not a de Polignac number, because 30017125 - 2¹ = 30017123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30017123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2197 + ... + 8053.

It is an arithmetic number, because the mean of its divisors is an integer number (2398851).

Almost surely, 2^30017125 is an apocalyptic number.

It is an amenable number.

30017125 is a deficient number, since it is larger than the sum of its proper divisors (8364491).

30017125 is an equidigital number, since it uses as much as digits as its factorization.

30017125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5913 (or 5903 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 30017125 is about 5478.7886434868. The cubic root of 30017125 is about 310.7823630786.

Adding to 30017125 its reverse (52171003), we get a palindrome (82188128).

The spelling of 30017125 in words is "thirty million, seventeen thousand, one hundred twenty-five".