538015 has 4 divisors (see below), whose sum is σ = 645624. Its totient is φ = 430408.

The previous prime is 538001. The next prime is 538019. The reversal of 538015 is 510835.

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 538015 - 2¹¹ = 535967 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538019) 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, 53797 + ... + 53806.

It is an arithmetic number, because the mean of its divisors is an integer number (161406).

2⁵³⁸⁰¹⁵ is an apocalyptic number.

538015 is a deficient number, since it is larger than the sum of its proper divisors (107609).

538015 is a wasteful number, since it uses less digits than its factorization.

538015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107608.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 538015 is about 733.4950579247. The cubic root of 538015 is about 81.3326260054.

The spelling of 538015 in words is "five hundred thirty-eight thousand, fifteen".