104139 has 32 divisors (see below), whose sum is σ = 192000. Its totient is φ = 54432.

The previous prime is 104123. The next prime is 104147. The reversal of 104139 is 931401.

104139 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 104139 - 2⁴ = 104123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3577 + ... + 3605.

It is an arithmetic number, because the mean of its divisors is an integer number (6000).

2¹⁰⁴¹³⁹ is an apocalyptic number.

104139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

104139 is a deficient number, since it is larger than the sum of its proper divisors (87861).

104139 is a wasteful number, since it uses less digits than its factorization.

104139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 104139 is about 322.7057483219. The cubic root of 104139 is about 47.0476354224.

It can be divided in two parts, 104 and 139, that added together give a 5-th power (243 = 3⁵).

The spelling of 104139 in words is "one hundred four thousand, one hundred thirty-nine".