6381229 has 4 divisors (see below), whose sum is σ = 6404220. Its totient is φ = 6358240.

The previous prime is 6381227. The next prime is 6381241. The reversal of 6381229 is 9221836.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1550025 + 4831204 = 1245^2 + 2198^2 .

It is a cyclic number.

It is not a de Polignac number, because 6381229 - 2¹ = 6381227 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6381229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6381227) 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 in 3 ways as a sum of consecutive naturals, for example, 11074 + ... + 11635.

It is an arithmetic number, because the mean of its divisors is an integer number (1601055).

Almost surely, 2^6381229 is an apocalyptic number.

It is an amenable number.

6381229 is a deficient number, since it is larger than the sum of its proper divisors (22991).

6381229 is a wasteful number, since it uses less digits than its factorization.

6381229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22990.

The product of its digits is 5184, while the sum is 31.

The square root of 6381229 is about 2526.1094592278. The cubic root of 6381229 is about 185.4818604621.

The spelling of 6381229 in words is "six million, three hundred eighty-one thousand, two hundred twenty-nine".