30128063 has 16 divisors (see below), whose sum is σ = 37638144. Its totient is φ = 23518080.

The previous prime is 30128051. The next prime is 30128089. The reversal of 30128063 is 36082103.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30128063 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 (30128093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395 + ... + 7772.

It is an arithmetic number, because the mean of its divisors is an integer number (2352384).

Almost surely, 2^30128063 is an apocalyptic number.

30128063 is a deficient number, since it is larger than the sum of its proper divisors (7510081).

30128063 is a wasteful number, since it uses less digits than its factorization.

30128063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8222.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30128063 is about 5488.9036245866. The cubic root of 30128063 is about 311.1647579776.

The spelling of 30128063 in words is "thirty million, one hundred twenty-eight thousand, sixty-three".