6531243 has 8 divisors (see below), whose sum is σ = 8872848. Its totient is φ = 4271904.

The previous prime is 6531233. The next prime is 6531251. The reversal of 6531243 is 3421356.

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 6531243 - 2⁵ = 6531211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6531233) 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, 20380 + ... + 20697.

It is an arithmetic number, because the mean of its divisors is an integer number (1109106).

Almost surely, 2^6531243 is an apocalyptic number.

6531243 is a deficient number, since it is larger than the sum of its proper divisors (2341605).

6531243 is a wasteful number, since it uses less digits than its factorization.

6531243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41133.

The product of its digits is 2160, while the sum is 24.

The square root of 6531243 is about 2555.6296680075. The cubic root of 6531243 is about 186.9240924627.

Adding to 6531243 its reverse (3421356), we get a palindrome (9952599).

The spelling of 6531243 in words is "six million, five hundred thirty-one thousand, two hundred forty-three".