6218249 has 4 divisors (see below), whose sum is σ = 6240660. Its totient is φ = 6195840.

The previous prime is 6218237. The next prime is 6218269. The reversal of 6218249 is 9428126.

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 5257849 + 960400 = 2293^2 + 980^2 .

It is a cyclic number.

It is not a de Polignac number, because 6218249 - 2⁸ = 6217993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6218269) 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, 10784 + ... + 11345.

It is an arithmetic number, because the mean of its divisors is an integer number (1560165).

Almost surely, 2^6218249 is an apocalyptic number.

It is an amenable number.

6218249 is a deficient number, since it is larger than the sum of its proper divisors (22411).

6218249 is a wasteful number, since it uses less digits than its factorization.

6218249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22410.

The product of its digits is 6912, while the sum is 32.

The square root of 6218249 is about 2493.6417144409. The cubic root of 6218249 is about 183.8891207364.

The spelling of 6218249 in words is "six million, two hundred eighteen thousand, two hundred forty-nine".