104538 has 32 divisors (see below), whose sum is σ = 253440. Its totient is φ = 28080.

The previous prime is 104537. The next prime is 104543. The reversal of 104538 is 835401.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104537) 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, 733 + ... + 863.

It is an arithmetic number, because the mean of its divisors is an integer number (7920).

2¹⁰⁴⁵³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126720).

104538 is an abundant number, since it is smaller than the sum of its proper divisors (148902).

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

104538 is a wasteful number, since it uses less digits than its factorization.

104538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 104538 is about 323.3233675440. The cubic root of 104538 is about 47.1076452265.

Adding to 104538 its reverse (835401), we get a palindrome (939939).

The spelling of 104538 in words is "one hundred four thousand, five hundred thirty-eight".