30163530 has 32 divisors (see below), whose sum is σ = 72581184. Its totient is φ = 8022656.

The previous prime is 30163513. The next prime is 30163531. The reversal of 30163530 is 3536103.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30163497 and 30163506.

It is not an unprimeable number, because it can be changed into a prime (30163531) 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, 12934 + ... + 15086.

It is an arithmetic number, because the mean of its divisors is an integer number (2268162).

Almost surely, 2^30163530 is an apocalyptic number.

30163530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30163530 is an abundant number, since it is smaller than the sum of its proper divisors (42417654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30163530 is a wasteful number, since it uses less digits than its factorization.

30163530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 30163530 is about 5492.1334652392. The cubic root of 30163530 is about 311.2868119877.

Adding to 30163530 its reverse (3536103), we get a palindrome (33699633).

The spelling of 30163530 in words is "thirty million, one hundred sixty-three thousand, five hundred thirty".