6331213 has 4 divisors (see below), whose sum is σ = 7235680. Its totient is φ = 5426748.

The previous prime is 6331207. The next prime is 6331249. The reversal of 6331213 is 3121336.

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 6331213 - 2¹⁷ = 6200141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6331253) 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 in 3 ways as a sum of consecutive naturals, for example, 452223 + ... + 452236.

It is an arithmetic number, because the mean of its divisors is an integer number (1808920).

Almost surely, 2^6331213 is an apocalyptic number.

It is an amenable number.

6331213 is a deficient number, since it is larger than the sum of its proper divisors (904467).

6331213 is an equidigital number, since it uses as much as digits as its factorization.

6331213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904466.

The product of its digits is 324, while the sum is 19.

The square root of 6331213 is about 2516.1901756425. The cubic root of 6331213 is about 184.9959872517.

Adding to 6331213 its reverse (3121336), we get a palindrome (9452549).

The spelling of 6331213 in words is "six million, three hundred thirty-one thousand, two hundred thirteen".