8121441 has 8 divisors (see below), whose sum is σ = 10843360. Its totient is φ = 5406912.

The previous prime is 8121439. The next prime is 8121499. The reversal of 8121441 is 1441218.

It is a happy number.

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

It is not a de Polignac number, because 8121441 - 2¹ = 8121439 is a prime.

It is a Duffinian number.

8121441 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (8121401) 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, 1686 + ... + 4368.

It is an arithmetic number, because the mean of its divisors is an integer number (1355420).

Almost surely, 2^8121441 is an apocalyptic number.

It is an amenable number.

8121441 is a deficient number, since it is larger than the sum of its proper divisors (2721919).

8121441 is a wasteful number, since it uses less digits than its factorization.

8121441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695.

The product of its digits is 256, while the sum is 21.

The square root of 8121441 is about 2849.8142044702. The cubic root of 8121441 is about 201.0069302826.

Adding to 8121441 its reverse (1441218), we get a palindrome (9562659).

The spelling of 8121441 in words is "eight million, one hundred twenty-one thousand, four hundred forty-one".