104644565 has 4 divisors (see below), whose sum is σ = 125573484. Its totient is φ = 83715648.

The previous prime is 104644543. The next prime is 104644577. The reversal of 104644565 is 565446401.

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 65431921 + 39212644 = 8089^2 + 6262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104644565 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10464452 + ... + 10464461.

It is an arithmetic number, because the mean of its divisors is an integer number (31393371).

Almost surely, 2^104644565 is an apocalyptic number.

It is an amenable number.

104644565 is a deficient number, since it is larger than the sum of its proper divisors (20928919).

104644565 is an equidigital number, since it uses as much as digits as its factorization.

104644565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20928918.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 104644565 is about 10229.5926116342. The cubic root of 104644565 is about 471.2364681248.

The spelling of 104644565 in words is "one hundred four million, six hundred forty-four thousand, five hundred sixty-five".