104915 has 4 divisors (see below), whose sum is σ = 125904. Its totient is φ = 83928.

The previous prime is 104911. The next prime is 104917. The reversal of 104915 is 519401.

104915 = T₁₈₄ + T₁₈₅ + ... + T₁₈₉.

104915 = 44² + 45² + ... + 73².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 519401 = 17 ⋅30553.

It is a cyclic number.

It is not a de Polignac number, because 104915 - 2² = 104911 is a prime.

It is a super-2 number, since 2×104915² = 22014314450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104911) 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, 10487 + ... + 10496.

It is an arithmetic number, because the mean of its divisors is an integer number (31476).

2¹⁰⁴⁹¹⁵ is an apocalyptic number.

104915 is a deficient number, since it is larger than the sum of its proper divisors (20989).

104915 is an equidigital number, since it uses as much as digits as its factorization.

104915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20988.

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

The square root of 104915 is about 323.9058505183. The cubic root of 104915 is about 47.1642060811.

The spelling of 104915 in words is "one hundred four thousand, nine hundred fifteen".