104140 has 24 divisors (see below), whose sum is σ = 225792. Its totient is φ = 40320.

The previous prime is 104123. The next prime is 104147. The reversal of 104140 is 41401.

104140 is nontrivially palindromic in base 9.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (104147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757 + ... + 883.

It is an arithmetic number, because the mean of its divisors is an integer number (9408).

2¹⁰⁴¹⁴⁰ is an apocalyptic number.

104140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112896).

104140 is an abundant number, since it is smaller than the sum of its proper divisors (121652).

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

104140 is a wasteful number, since it uses less digits than its factorization.

104140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 104140 is about 322.7072977173. The cubic root of 104140 is about 47.0477860143.

Adding to 104140 its reverse (41401), we get a palindrome (145541).

It can be divided in two parts, 1041 and 40, that added together give a triangular number (1081 = T₄₆).

The spelling of 104140 in words is "one hundred four thousand, one hundred forty", and thus it is an iban number.