30125689 has 8 divisors (see below), whose sum is σ = 32986368. Its totient is φ = 27285360.

The previous prime is 30125663. The next prime is 30125759. The reversal of 30125689 is 98652103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30125689 - 2⁵ = 30125657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30125629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1897 + ... + 7990.

It is an arithmetic number, because the mean of its divisors is an integer number (4123296).

Almost surely, 2^30125689 is an apocalyptic number.

It is an amenable number.

30125689 is a deficient number, since it is larger than the sum of its proper divisors (2860679).

30125689 is a wasteful number, since it uses less digits than its factorization.

30125689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10175.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 30125689 is about 5488.6873658462. The cubic root of 30125689 is about 311.1565848165.

The spelling of 30125689 in words is "thirty million, one hundred twenty-five thousand, six hundred eighty-nine".