13281241 has 2 divisors, whose sum is σ = 13281242. Its totient is φ = 13281240.

The previous prime is 13281239. The next prime is 13281251. The reversal of 13281241 is 14218231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10627600 + 2653641 = 3260^2 + 1629^2 .

It is a cyclic number.

It is not a de Polignac number, because 13281241 - 2¹ = 13281239 is a prime.

Together with 13281239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13281221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6640620 + 6640621.

It is an arithmetic number, because the mean of its divisors is an integer number (6640621).

Almost surely, 2^13281241 is an apocalyptic number.

It is an amenable number.

13281241 is a deficient number, since it is larger than the sum of its proper divisors (1).

13281241 is an equidigital number, since it uses as much as digits as its factorization.

13281241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 22.

The square root of 13281241 is about 3644.3436994883. The cubic root of 13281241 is about 236.8170058037.

Adding to 13281241 its reverse (14218231), we get a palindrome (27499472).

The spelling of 13281241 in words is "thirteen million, two hundred eighty-one thousand, two hundred forty-one".