104519 has 4 divisors (see below), whose sum is σ = 110040. Its totient is φ = 99000.

The previous prime is 104513. The next prime is 104527. The reversal of 104519 is 915401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 915401 = 19 ⋅48179.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104519 is a prime.

It is a super-2 number, since 2×104519² = 21848442722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104513) 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, 2732 + ... + 2769.

It is an arithmetic number, because the mean of its divisors is an integer number (27510).

2¹⁰⁴⁵¹⁹ is an apocalyptic number.

104519 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

104519 is a deficient number, since it is larger than the sum of its proper divisors (5521).

104519 is an equidigital number, since it uses as much as digits as its factorization.

104519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 104519 is about 323.2939838599. The cubic root of 104519 is about 47.1047910826.

The spelling of 104519 in words is "one hundred four thousand, five hundred nineteen".