30193 has 4 divisors (see below), whose sum is σ = 30580. Its totient is φ = 29808.

The previous prime is 30187. The next prime is 30197. The reversal of 30193 is 39103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 12769 + 17424 = 113^2 + 132^2 .

It is a cyclic number.

It is not a de Polignac number, because 30193 - 2⁵ = 30161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30197) 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, 30 + ... + 247.

It is an arithmetic number, because the mean of its divisors is an integer number (7645).

2³⁰¹⁹³ is an apocalyptic number.

It is an amenable number.

30193 is a deficient number, since it is larger than the sum of its proper divisors (387).

30193 is a wasteful number, since it uses less digits than its factorization.

30193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 30193 is about 173.7613305658. The cubic root of 30193 is about 31.1388155524.

Adding to 30193 its reverse (39103), we get a palindrome (69296).

The spelling of 30193 in words is "thirty thousand, one hundred ninety-three".