13241281 has 4 divisors (see below), whose sum is σ = 13255812. Its totient is φ = 13226752.

The previous prime is 13241273. The next prime is 13241329. The reversal of 13241281 is 18214231.

It is a happy number.

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 11498881 + 1742400 = 3391^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 13241281 - 2³ = 13241273 is a prime.

It is a super-2 number, since 2×13241281² = 350663045041922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13241381) 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, 5800 + ... + 7753.

It is an arithmetic number, because the mean of its divisors is an integer number (3313953).

Almost surely, 2^13241281 is an apocalyptic number.

It is an amenable number.

13241281 is a deficient number, since it is larger than the sum of its proper divisors (14531).

13241281 is an equidigital number, since it uses as much as digits as its factorization.

13241281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14530.

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

The square root of 13241281 is about 3638.8571007941. The cubic root of 13241281 is about 236.5792590883.

The spelling of 13241281 in words is "thirteen million, two hundred forty-one thousand, two hundred eighty-one".