13281245 has 8 divisors (see below), whose sum is σ = 16130016. Its totient is φ = 10496656.

The previous prime is 13281241. The next prime is 13281251. The reversal of 13281245 is 54218231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13281245 - 2² = 13281241 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13281241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15587 + ... + 16416.

It is an arithmetic number, because the mean of its divisors is an integer number (2016252).

Almost surely, 2^13281245 is an apocalyptic number.

It is an amenable number.

13281245 is a deficient number, since it is larger than the sum of its proper divisors (2848771).

13281245 is an equidigital number, since it uses as much as digits as its factorization.

13281245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32091.

The product of its digits is 1920, while the sum is 26.

The square root of 13281245 is about 3644.3442482839. The cubic root of 13281245 is about 236.8170295783.

Adding to 13281245 its reverse (54218231), we get a palindrome (67499476).

The spelling of 13281245 in words is "thirteen million, two hundred eighty-one thousand, two hundred forty-five".