6541121 has 4 divisors (see below), whose sum is σ = 6624000. Its totient is φ = 6458244.

The previous prime is 6541109. The next prime is 6541123. The reversal of 6541121 is 1211456.

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 not a de Polignac number, because 6541121 - 2⁶ = 6541057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6541093 and 6541102.

It is not an unprimeable number, because it can be changed into a prime (6541123) 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, 41321 + ... + 41478.

It is an arithmetic number, because the mean of its divisors is an integer number (1656000).

Almost surely, 2^6541121 is an apocalyptic number.

It is an amenable number.

6541121 is a deficient number, since it is larger than the sum of its proper divisors (82879).

6541121 is an equidigital number, since it uses as much as digits as its factorization.

6541121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82878.

The product of its digits is 240, while the sum is 20.

The square root of 6541121 is about 2557.5615339616. The cubic root of 6541121 is about 187.0182810728.

Adding to 6541121 its reverse (1211456), we get a palindrome (7752577).

The spelling of 6541121 in words is "six million, five hundred forty-one thousand, one hundred twenty-one".