502139 has 8 divisors (see below), whose sum is σ = 552960. Its totient is φ = 452200.

The previous prime is 502133. The next prime is 502141. The reversal of 502139 is 931205.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-502139 is a prime.

It is a super-3 number, since 3×502139³ = 379833368304334857, which contains 333 as substring.

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 502139.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 502139.

It is not an unprimeable number, because it can be changed into a prime (502133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1982 + ... + 2220.

It is an arithmetic number, because the mean of its divisors is an integer number (69120).

2⁵⁰²¹³⁹ is an apocalyptic number.

502139 is a deficient number, since it is larger than the sum of its proper divisors (50821).

502139 is a wasteful number, since it uses less digits than its factorization.

502139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 502139 is about 708.6176684221. The cubic root of 502139 is about 79.4830732788.

The spelling of 502139 in words is "five hundred two thousand, one hundred thirty-nine".