13021241 has 4 divisors (see below), whose sum is σ = 13242000. Its totient is φ = 12800484.

The previous prime is 13021219. The next prime is 13021247. The reversal of 13021241 is 14212031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13021241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13021247) 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 3 ways as a sum of consecutive naturals, for example, 110291 + ... + 110408.

It is an arithmetic number, because the mean of its divisors is an integer number (3310500).

Almost surely, 2^13021241 is an apocalyptic number.

It is an amenable number.

13021241 is a deficient number, since it is larger than the sum of its proper divisors (220759).

13021241 is an equidigital number, since it uses as much as digits as its factorization.

13021241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220758.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 13021241 is about 3608.4956699434. The cubic root of 13021241 is about 235.2614624204.

Adding to 13021241 its reverse (14212031), we get a palindrome (27233272).

The spelling of 13021241 in words is "thirteen million, twenty-one thousand, two hundred forty-one".