103439 has 6 divisors (see below), whose sum is σ = 120384. Its totient is φ = 88620.

The previous prime is 103423. The next prime is 103451. The reversal of 103439 is 934301.

It is not a de Polignac number, because 103439 - 2⁴ = 103423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103439.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 103439.

It is not an unprimeable number, because it can be changed into a prime (103409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1007 + ... + 1104.

It is an arithmetic number, because the mean of its divisors is an integer number (20064).

2¹⁰³⁴³⁹ is an apocalyptic number.

103439 is a deficient number, since it is larger than the sum of its proper divisors (16945).

103439 is an equidigital number, since it uses as much as digits as its factorization.

103439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 103439 is about 321.6193402145. The cubic root of 103439 is about 46.9419836432.

The spelling of 103439 in words is "one hundred three thousand, four hundred thirty-nine".