5143989 has 4 divisors (see below), whose sum is σ = 6858656. Its totient is φ = 3429324.

The previous prime is 5143987. The next prime is 5144011. The reversal of 5143989 is 9893415.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5143989 - 2¹ = 5143987 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5143987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857329 + ... + 857334.

It is an arithmetic number, because the mean of its divisors is an integer number (1714664).

Almost surely, 2^5143989 is an apocalyptic number.

It is an amenable number.

5143989 is a deficient number, since it is larger than the sum of its proper divisors (1714667).

5143989 is a wasteful number, since it uses less digits than its factorization.

5143989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714666.

The product of its digits is 38880, while the sum is 39.

The square root of 5143989 is about 2268.0363753697. The cubic root of 5143989 is about 172.6235367961.

Adding to 5143989 its sum of digits (39), we get a triangular number (5144028 = T₃₂₀₇).

The spelling of 5143989 in words is "five million, one hundred forty-three thousand, nine hundred eighty-nine".