13230445 has 4 divisors (see below), whose sum is σ = 15876540. Its totient is φ = 10584352.

The previous prime is 13230419. The next prime is 13230457. The reversal of 13230445 is 54403231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2452356 + 10778089 = 1566^2 + 3283^2 .

It is a cyclic number.

It is not a de Polignac number, because 13230445 - 2⁹ = 13229933 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1323040 + ... + 1323049.

It is an arithmetic number, because the mean of its divisors is an integer number (3969135).

Almost surely, 2^13230445 is an apocalyptic number.

It is an amenable number.

13230445 is a deficient number, since it is larger than the sum of its proper divisors (2646095).

13230445 is an equidigital number, since it uses as much as digits as its factorization.

13230445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646094.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 13230445 is about 3637.3678670159. The cubic root of 13230445 is about 236.5147066111.

Adding to 13230445 its reverse (54403231), we get a palindrome (67633676).

The spelling of 13230445 in words is "thirteen million, two hundred thirty thousand, four hundred forty-five".