6623131 has 2 divisors, whose sum is σ = 6623132. Its totient is φ = 6623130.

The previous prime is 6623117. The next prime is 6623159. The reversal of 6623131 is 1313266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6623131 - 2⁹ = 6622619 is a prime.

It is a super-2 number, since 2×6623131² = 87731728486322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6623101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311565 + 3311566.

It is an arithmetic number, because the mean of its divisors is an integer number (3311566).

Almost surely, 2^6623131 is an apocalyptic number.

6623131 is a deficient number, since it is larger than the sum of its proper divisors (1).

6623131 is an equidigital number, since it uses as much as digits as its factorization.

6623131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 22.

The square root of 6623131 is about 2573.5444429813. The cubic root of 6623131 is about 187.7966244196.

Adding to 6623131 its reverse (1313266), we get a palindrome (7936397).

The spelling of 6623131 in words is "six million, six hundred twenty-three thousand, one hundred thirty-one".