104009945 has 8 divisors (see below), whose sum is σ = 134412936. Its totient is φ = 76807296.

The previous prime is 104009909. The next prime is 104009953. The reversal of 104009945 is 549900401.

It can be written as a sum of positive squares in 4 ways, for example, as 51529 + 103958416 = 227^2 + 10196^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104009945 - 2⁶ = 104009881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800012 + ... + 800141.

It is an arithmetic number, because the mean of its divisors is an integer number (16801617).

Almost surely, 2^104009945 is an apocalyptic number.

It is an amenable number.

104009945 is a deficient number, since it is larger than the sum of its proper divisors (30402991).

104009945 is a wasteful number, since it uses less digits than its factorization.

104009945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600171.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 104009945 is about 10198.5266092706. The cubic root of 104009945 is about 470.2819268250.

The spelling of 104009945 in words is "one hundred four million, nine thousand, nine hundred forty-five".