508139 has 4 divisors (see below), whose sum is σ = 530256. Its totient is φ = 486024.

The previous prime is 508129. The next prime is 508159. The reversal of 508139 is 931805.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 508139 - 2⁸ = 507883 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 508139.

It is not an unprimeable number, because it can be changed into a prime (508129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11024 + ... + 11069.

It is an arithmetic number, because the mean of its divisors is an integer number (132564).

2⁵⁰⁸¹³⁹ is an apocalyptic number.

508139 is a deficient number, since it is larger than the sum of its proper divisors (22117).

508139 is a wasteful number, since it uses less digits than its factorization.

508139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22116.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 508139 is about 712.8386914303. The cubic root of 508139 is about 79.7983986379.

The spelling of 508139 in words is "five hundred eight thousand, one hundred thirty-nine".