6451231 has 2 divisors, whose sum is σ = 6451232. Its totient is φ = 6451230.

The previous prime is 6451223. The next prime is 6451259. The reversal of 6451231 is 1321546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6451231 - 2³ = 6451223 is a prime.

It is a super-2 number, since 2×6451231² = 83236762830722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6451261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3225615 + 3225616.

It is an arithmetic number, because the mean of its divisors is an integer number (3225616).

Almost surely, 2^6451231 is an apocalyptic number.

6451231 is a deficient number, since it is larger than the sum of its proper divisors (1).

6451231 is an equidigital number, since it uses as much as digits as its factorization.

6451231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 22.

The square root of 6451231 is about 2539.9273611661. The cubic root of 6451231 is about 186.1576398967.

Adding to 6451231 its reverse (1321546), we get a palindrome (7772777).

The spelling of 6451231 in words is "six million, four hundred fifty-one thousand, two hundred thirty-one".