30717125 has 16 divisors (see below), whose sum is σ = 39576576. Its totient is φ = 23778000.

The previous prime is 30717107. The next prime is 30717139. The reversal of 30717125 is 52171703.

It is not a de Polignac number, because 30717125 - 2⁸ = 30716869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30717094 and 30717103.

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, 89 + ... + 7838.

It is an arithmetic number, because the mean of its divisors is an integer number (2473536).

Almost surely, 2^30717125 is an apocalyptic number.

It is an amenable number.

30717125 is a deficient number, since it is larger than the sum of its proper divisors (8859451).

30717125 is an equidigital number, since it uses as much as digits as its factorization.

30717125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7973 (or 7963 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 30717125 is about 5542.3032215858. The cubic root of 30717125 is about 313.1796408112.

Adding to 30717125 its reverse (52171703), we get a palindrome (82888828).

The spelling of 30717125 in words is "thirty million, seven hundred seventeen thousand, one hundred twenty-five".