30530811 has 8 divisors (see below), whose sum is σ = 40772160. Its totient is φ = 20321672.

The previous prime is 30530771. The next prime is 30530813. The reversal of 30530811 is 11803503.

It is a happy number.

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 30530811 - 2⁹ = 30530299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30530813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5745 + ... + 9698.

It is an arithmetic number, because the mean of its divisors is an integer number (5096520).

Almost surely, 2^30530811 is an apocalyptic number.

30530811 is a deficient number, since it is larger than the sum of its proper divisors (10241349).

30530811 is a wasteful number, since it uses less digits than its factorization.

30530811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16105.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 30530811 is about 5525.4693013354. The cubic root of 30530811 is about 312.5451616864.

The spelling of 30530811 in words is "thirty million, five hundred thirty thousand, eight hundred eleven".