13243250 has 16 divisors (see below), whose sum is σ = 24791832. Its totient is φ = 5297200.

The previous prime is 13243213. The next prime is 13243253. The reversal of 13243250 is 5234231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6806881 + 6436369 = 2609^2 + 2537^2 .

It is not an unprimeable number, because it can be changed into a prime (13243253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26237 + ... + 26736.

Almost surely, 2^13243250 is an apocalyptic number.

13243250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13243250 is a deficient number, since it is larger than the sum of its proper divisors (11548582).

13243250 is an equidigital number, since it uses as much as digits as its factorization.

13243250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52990 (or 52980 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13243250 is about 3639.1276427188. The cubic root of 13243250 is about 236.5909850805.

Adding to 13243250 its reverse (5234231), we get a palindrome (18477481).

The spelling of 13243250 in words is "thirteen million, two hundred forty-three thousand, two hundred fifty".