104569 has 4 divisors (see below), whose sum is σ = 106596. Its totient is φ = 102544.

The previous prime is 104561. The next prime is 104579. The reversal of 104569 is 965401.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48400 + 56169 = 220^2 + 237^2 .

It is a cyclic number.

It is not a de Polignac number, because 104569 - 2³ = 104561 is a prime.

It is a super-2 number, since 2×104569² = 21869351522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104561) 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, 934 + ... + 1039.

It is an arithmetic number, because the mean of its divisors is an integer number (26649).

2¹⁰⁴⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

104569 is a deficient number, since it is larger than the sum of its proper divisors (2027).

104569 is an equidigital number, since it uses as much as digits as its factorization.

104569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 104569 is about 323.3713036124. The cubic root of 104569 is about 47.1123012453.

The spelling of 104569 in words is "one hundred four thousand, five hundred sixty-nine".