6541331 has 4 divisors (see below), whose sum is σ = 6556872. Its totient is φ = 6525792.

The previous prime is 6541321. The next prime is 6541333. The reversal of 6541331 is 1331456.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6541331 - 2¹⁸ = 6279187 is a prime.

It is a super-2 number, since 2×6541331² = 85578022503122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 6541297 and 6541306.

It is not an unprimeable number, because it can be changed into a prime (6541333) 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, 7121 + ... + 7986.

It is an arithmetic number, because the mean of its divisors is an integer number (1639218).

Almost surely, 2^6541331 is an apocalyptic number.

6541331 is a deficient number, since it is larger than the sum of its proper divisors (15541).

6541331 is a wasteful number, since it uses less digits than its factorization.

6541331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15540.

The product of its digits is 1080, while the sum is 23.

The square root of 6541331 is about 2557.6025883628. The cubic root of 6541331 is about 187.0202824331.

Adding to 6541331 its reverse (1331456), we get a palindrome (7872787).

The spelling of 6541331 in words is "six million, five hundred forty-one thousand, three hundred thirty-one".