104187 has 4 divisors (see below), whose sum is σ = 138920. Its totient is φ = 69456.

The previous prime is 104183. The next prime is 104207. The reversal of 104187 is 781401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 781401 = 3 ⋅260467.

It is not a de Polignac number, because 104187 - 2² = 104183 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

104187 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (104183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17362 + ... + 17367.

It is an arithmetic number, because the mean of its divisors is an integer number (34730).

2¹⁰⁴¹⁸⁷ is an apocalyptic number.

104187 is a deficient number, since it is larger than the sum of its proper divisors (34733).

104187 is an equidigital number, since it uses as much as digits as its factorization.

104187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34732.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 104187 is about 322.7801109114. The cubic root of 104187 is about 47.0548627488.

Adding to 104187 its reverse (781401), we get a palindrome (885588).

It can be divided in two parts, 1041 and 87, that added together give a triangular number (1128 = T₄₇).

The spelling of 104187 in words is "one hundred four thousand, one hundred eighty-seven".