104509445 has 4 divisors (see below), whose sum is σ = 125411340. Its totient is φ = 83607552.

The previous prime is 104509439. The next prime is 104509453. The reversal of 104509445 is 544905401.

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 49126081 + 55383364 = 7009^2 + 7442^2 .

It is a cyclic number.

It is not a de Polignac number, because 104509445 - 2²⁰ = 103460869 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10450940 + ... + 10450949.

It is an arithmetic number, because the mean of its divisors is an integer number (31352835).

Almost surely, 2^104509445 is an apocalyptic number.

It is an amenable number.

104509445 is a deficient number, since it is larger than the sum of its proper divisors (20901895).

104509445 is an equidigital number, since it uses as much as digits as its factorization.

104509445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20901894.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 104509445 is about 10222.9861097431. The cubic root of 104509445 is about 471.0335561790.

The spelling of 104509445 in words is "one hundred four million, five hundred nine thousand, four hundred forty-five".