508138 has 8 divisors (see below), whose sum is σ = 788580. Its totient is φ = 245280.

The previous prime is 508129. The next prime is 508159. The reversal of 508138 is 831805.

It can be written as a sum of positive squares in 2 ways, for example, as 480249 + 27889 = 693^2 + 167^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4323 + ... + 4438.

2⁵⁰⁸¹³⁸ is an apocalyptic number.

508138 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

508138 is a deficient number, since it is larger than the sum of its proper divisors (280442).

508138 is a wasteful number, since it uses less digits than its factorization.

508138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8792.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 508138 is about 712.8379900090. The cubic root of 508138 is about 79.7983462910.

It can be divided in two parts, 508 and 138, that added together give a palindrome (646).

The spelling of 508138 in words is "five hundred eight thousand, one hundred thirty-eight".