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104143 = 138011

104143 has 4 divisors (see below), whose sum is σ = 112168. Its totient is φ = 96120.

The previous prime is 104123. The next prime is 104147. The reversal of 104143 is 341401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341401 = 1971733.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-104143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 8011 = 104143 / (1 + 0 + 4 + 1 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3993 + ... + 4018.

It is an arithmetic number, because the mean of its divisors is an integer number (28042).

2104143 is an apocalyptic number.

104143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

104143 is a deficient number, since it is larger than the sum of its proper divisors (8025).

104143 is an equidigital number, since it uses as much as digits as its factorization.

104143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8024.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 104143 is about 322.7119458588. The cubic root of 104143 is about 47.0482377844.

Adding to 104143 its reverse (341401), we get a palindrome (445544).

The spelling of 104143 in words is "one hundred four thousand, one hundred forty-three", and thus it is an iban number.

Divisors: 1 13 8011 104143