103239 has 6 divisors (see below), whose sum is σ = 149136.
Its totient is φ = 68820.
The previous prime is 103237. The next prime is 103289. The reversal of 103239 is 932301.
It can be divided in two parts, 10 and 3239, that added together give a square (3249 = 572).
It is not a de Polignac number, because 103239 - 21 = 103237 is a prime.
It is a super-2 number, since 2×1032392 = 21316582242, which contains 22 as substring.
It is an Ulam number.
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 103239.
It is not an unprimeable number, because it can be changed into a prime (103231) 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, 5727 + ... + 5744.
It is an arithmetic number, because the mean of its divisors is an integer number (24856).
2103239 is an apocalyptic number.
103239 is a deficient number, since it is larger than the sum of its proper divisors (45897).
103239 is a wasteful number, since it uses less digits than its factorization.
103239 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11477 (or 11474 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
The square root of 103239 is about 321.3082631991.
The cubic root of 103239 is about 46.9117099100.
The spelling of 103239 in words is "one hundred three thousand, two hundred thirty-nine".