507138 has 8 divisors (see below), whose sum is σ = 1014288. Its totient is φ = 169044.

The previous prime is 507137. The next prime is 507139. The reversal of 507138 is 831705.

It is an interprime number because it is at equal distance from previous prime (507137) and next prime (507139).

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

507138 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 507138.

It is not an unprimeable number, because it can be changed into a prime (507137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42256 + ... + 42267.

It is an arithmetic number, because the mean of its divisors is an integer number (126786).

2⁵⁰⁷¹³⁸ is an apocalyptic number.

507138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

507138 is a wasteful number, since it uses less digits than its factorization.

507138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84528.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 507138 is about 712.1362229237. The cubic root of 507138 is about 79.7459650150.

It can be divided in two parts, 50713 and 8, that added together give a triangular number (50721 = T₃₁₈).

The spelling of 507138 in words is "five hundred seven thousand, one hundred thirty-eight".