5144989 has 2 divisors, whose sum is σ = 5144990. Its totient is φ = 5144988.

The previous prime is 5144983. The next prime is 5145011. The reversal of 5144989 is 9894415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2992900 + 2152089 = 1730^2 + 1467^2 .

It is a cyclic number.

It is not a de Polignac number, because 5144989 - 2³ = 5144981 is a prime.

5144989 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5144981) 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 as a sum of consecutive naturals, namely, 2572494 + 2572495.

It is an arithmetic number, because the mean of its divisors is an integer number (2572495).

Almost surely, 2^5144989 is an apocalyptic number.

It is an amenable number.

5144989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5144989 is an equidigital number, since it uses as much as digits as its factorization.

5144989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 40.

The square root of 5144989 is about 2268.2568196745. The cubic root of 5144989 is about 172.6347221721.

The spelling of 5144989 in words is "five million, one hundred forty-four thousand, nine hundred eighty-nine".