6144889 has 2 divisors, whose sum is σ = 6144890. Its totient is φ = 6144888.

The previous prime is 6144881. The next prime is 6144893. The reversal of 6144889 is 9884416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3312400 + 2832489 = 1820^2 + 1683^2 .

It is a cyclic number.

It is not a de Polignac number, because 6144889 - 2³ = 6144881 is a prime.

It is not a weakly prime, because it can be changed into another prime (6144881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3072444 + 3072445.

It is an arithmetic number, because the mean of its divisors is an integer number (3072445).

Almost surely, 2^6144889 is an apocalyptic number.

It is an amenable number.

6144889 is a deficient number, since it is larger than the sum of its proper divisors (1).

6144889 is an equidigital number, since it uses as much as digits as its factorization.

6144889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 40.

The square root of 6144889 is about 2478.8886622840. Note that the first 3 decimals coincide. The cubic root of 6144889 is about 183.1631121582.

The spelling of 6144889 in words is "six million, one hundred forty-four thousand, eight hundred eighty-nine".