12030493 has 4 divisors (see below), whose sum is σ = 12039580. Its totient is φ = 12021408.

The previous prime is 12030463. The next prime is 12030521. The reversal of 12030493 is 39403021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39403021 = 7 ⋅5629003.

It can be written as a sum of positive squares in 2 ways, for example, as 11648569 + 381924 = 3413^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 12030493 - 2⁵ = 12030461 is a prime.

It is the 3469-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030433) by changing a digit.

It is a nontrivial repunit in base 3468.

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, 2130 + ... + 5347.

It is an arithmetic number, because the mean of its divisors is an integer number (3009895).

Almost surely, 2^12030493 is an apocalyptic number.

It is an amenable number.

12030493 is a deficient number, since it is larger than the sum of its proper divisors (9087).

12030493 is an equidigital number, since it uses as much as digits as its factorization.

12030493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9086.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 12030493 is about 3468.5001081159. The cubic root of 12030493 is about 229.1366054379.

The spelling of 12030493 in words is "twelve million, thirty thousand, four hundred ninety-three".