538109 has 16 divisors (see below), whose sum is σ = 653184. Its totient is φ = 436800.

The previous prime is 538093. The next prime is 538117. The reversal of 538109 is 901835.

It is not a de Polignac number, because 538109 - 2⁴ = 538093 is a prime.

It is a super-2 number, since 2×538109² = 579122591762, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7544 + ... + 7614.

It is an arithmetic number, because the mean of its divisors is an integer number (40824).

2⁵³⁸¹⁰⁹ is an apocalyptic number.

It is an amenable number.

538109 is a deficient number, since it is larger than the sum of its proper divisors (115075).

538109 is a wasteful number, since it uses less digits than its factorization.

538109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148.

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

The square root of 538109 is about 733.5591319042. The cubic root of 538109 is about 81.3373624419.

The spelling of 538109 in words is "five hundred thirty-eight thousand, one hundred nine".