30125289 has 16 divisors (see below), whose sum is σ = 41596928. Its totient is φ = 19377792.

The previous prime is 30125281. The next prime is 30125321. The reversal of 30125289 is 98252103.

It is a happy number.

It is not a de Polignac number, because 30125289 - 2³ = 30125281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30125281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13029 + ... + 15165.

It is an arithmetic number, because the mean of its divisors is an integer number (2599808).

Almost surely, 2^30125289 is an apocalyptic number.

It is an amenable number.

30125289 is a deficient number, since it is larger than the sum of its proper divisors (11471639).

30125289 is a wasteful number, since it uses less digits than its factorization.

30125289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 30125289 is about 5488.6509271405. The cubic root of 30125289 is about 311.1552076620.

The spelling of 30125289 in words is "thirty million, one hundred twenty-five thousand, two hundred eighty-nine".