13021441 has 4 divisors (see below), whose sum is σ = 13706800. Its totient is φ = 12336084.

The previous prime is 13021433. The next prime is 13021451. The reversal of 13021441 is 14412031.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14412031 = 1489 ⋅9679.

It is a cyclic number.

It is not a de Polignac number, because 13021441 - 2³ = 13021433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13021451) 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, 342651 + ... + 342688.

It is an arithmetic number, because the mean of its divisors is an integer number (3426700).

Almost surely, 2^13021441 is an apocalyptic number.

It is an amenable number.

13021441 is a deficient number, since it is larger than the sum of its proper divisors (685359).

13021441 is an equidigital number, since it uses as much as digits as its factorization.

13021441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685358.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 13021441 is about 3608.5233822161. The cubic root of 13021441 is about 235.2626669152.

Adding to 13021441 its reverse (14412031), we get a palindrome (27433472).

The spelling of 13021441 in words is "thirteen million, twenty-one thousand, four hundred forty-one".