13244545 has 4 divisors (see below), whose sum is σ = 15893460. Its totient is φ = 10595632.

The previous prime is 13244521. The next prime is 13244549. The reversal of 13244545 is 54544231.

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 1874161 + 11370384 = 1369^2 + 3372^2 .

It is a cyclic number.

It is not a de Polignac number, because 13244545 - 2¹¹ = 13242497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13244549) 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, 1324450 + ... + 1324459.

It is an arithmetic number, because the mean of its divisors is an integer number (3973365).

Almost surely, 2^13244545 is an apocalyptic number.

It is an amenable number.

13244545 is a deficient number, since it is larger than the sum of its proper divisors (2648915).

13244545 is an equidigital number, since it uses as much as digits as its factorization.

13244545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648914.

The product of its digits is 9600, while the sum is 28.

The square root of 13244545 is about 3639.3055656265. The cubic root of 13244545 is about 236.5986965647.

Adding to 13244545 its reverse (54544231), we get a palindrome (67788776).

The spelling of 13244545 in words is "thirteen million, two hundred forty-four thousand, five hundred forty-five".