6218149 has 12 divisors (see below), whose sum is σ = 7615200. Its totient is φ = 5048568.

The previous prime is 6218143. The next prime is 6218159. The reversal of 6218149 is 9418126.

It is a happy number.

It is not a de Polignac number, because 6218149 - 2⁵ = 6218117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6218149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6218143) 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 11 ways as a sum of consecutive naturals, for example, 2409 + ... + 4270.

It is an arithmetic number, because the mean of its divisors is an integer number (634600).

Almost surely, 2^6218149 is an apocalyptic number.

It is an amenable number.

6218149 is a deficient number, since it is larger than the sum of its proper divisors (1397051).

6218149 is a wasteful number, since it uses less digits than its factorization.

6218149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6712 (or 6705 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 6218149 is about 2493.6216633644. The cubic root of 6218149 is about 183.8881349814. Note that the first 3 decimals are identical.

The spelling of 6218149 in words is "six million, two hundred eighteen thousand, one hundred forty-nine".