30125117 has 4 divisors (see below), whose sum is σ = 32863776. Its totient is φ = 27386460.

The previous prime is 30125111. The next prime is 30125191. The reversal of 30125117 is 71152103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71152103 = 11 ⋅6468373.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30125117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30125111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1369313 + ... + 1369334.

It is an arithmetic number, because the mean of its divisors is an integer number (8215944).

Almost surely, 2^30125117 is an apocalyptic number.

It is an amenable number.

30125117 is a deficient number, since it is larger than the sum of its proper divisors (2738659).

30125117 is a wasteful number, since it uses less digits than its factorization.

30125117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738658.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 30125117 is about 5488.6352584226. The cubic root of 30125117 is about 311.1546154818.

The spelling of 30125117 in words is "thirty million, one hundred twenty-five thousand, one hundred seventeen".