6144989 has 2 divisors, whose sum is σ = 6144990. Its totient is φ = 6144988.

The previous prime is 6144977. The next prime is 6144991. The reversal of 6144989 is 9894416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4368100 + 1776889 = 2090^2 + 1333^2 .

It is a cyclic number.

It is not a de Polignac number, because 6144989 - 2¹⁶ = 6079453 is a prime.

Together with 6144991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6144959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3072494 + 3072495.

It is an arithmetic number, because the mean of its divisors is an integer number (3072495).

Almost surely, 2^6144989 is an apocalyptic number.

It is an amenable number.

6144989 is a deficient number, since it is larger than the sum of its proper divisors (1).

6144989 is an equidigital number, since it uses as much as digits as its factorization.

6144989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 6144989 is about 2478.9088325310. The cubic root of 6144989 is about 183.1641057325.

The spelling of 6144989 in words is "six million, one hundred forty-four thousand, nine hundred eighty-nine".