4989139 has 2 divisors, whose sum is σ = 4989140. Its totient is φ = 4989138.

The previous prime is 4989133. The next prime is 4989151. The reversal of 4989139 is 9319894.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4989139 - 2⁵ = 4989107 is a prime.

It is a super-2 number, since 2×4989139² = 49783015922642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4989095 and 4989104.

It is not a weakly prime, because it can be changed into another prime (4989133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2494569 + 2494570.

It is an arithmetic number, because the mean of its divisors is an integer number (2494570).

Almost surely, 2^4989139 is an apocalyptic number.

4989139 is a deficient number, since it is larger than the sum of its proper divisors (1).

4989139 is an equidigital number, since it uses as much as digits as its factorization.

4989139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 43.

The square root of 4989139 is about 2233.6380637874. The cubic root of 4989139 is about 170.8736912516.

The spelling of 4989139 in words is "four million, nine hundred eighty-nine thousand, one hundred thirty-nine".