104515 has 4 divisors (see below), whose sum is σ = 125424. Its totient is φ = 83608.

The previous prime is 104513. The next prime is 104527. The reversal of 104515 is 515401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104515 - 2¹ = 104513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10447 + ... + 10456.

It is an arithmetic number, because the mean of its divisors is an integer number (31356).

2¹⁰⁴⁵¹⁵ is an apocalyptic number.

104515 is a deficient number, since it is larger than the sum of its proper divisors (20909).

104515 is an equidigital number, since it uses as much as digits as its factorization.

104515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20908.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 104515 is about 323.2877974808. The cubic root of 104515 is about 47.1041901661.

Adding to 104515 its reverse (515401), we get a palindrome (619916).

It can be divided in two parts, 10 and 4515, that multiplied together give a triangular number (45150 = T₃₀₀).

The spelling of 104515 in words is "one hundred four thousand, five hundred fifteen".