30423163 has 4 divisors (see below), whose sum is σ = 30451240. Its totient is φ = 30395088.

The previous prime is 30423157. The next prime is 30423191. The reversal of 30423163 is 36132403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30423163 - 2⁵ = 30423131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30423143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12345 + ... + 14602.

It is an arithmetic number, because the mean of its divisors is an integer number (7612810).

Almost surely, 2^30423163 is an apocalyptic number.

30423163 is a deficient number, since it is larger than the sum of its proper divisors (28077).

30423163 is a wasteful number, since it uses less digits than its factorization.

30423163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28076.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 30423163 is about 5515.7196266670. The cubic root of 30423163 is about 312.1773967882.

Adding to 30423163 its reverse (36132403), we get a palindrome (66555566).

The spelling of 30423163 in words is "thirty million, four hundred twenty-three thousand, one hundred sixty-three".