804163545 has 56 divisors (see below), whose sum is σ = 1482396552. Its totient is φ = 418348800.

The previous prime is 804163489. The next prime is 804163553. The reversal of 804163545 is 545361408.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1971216 + 802192329 = 1404^2 + 28323^2 .

It is not a de Polignac number, because 804163545 - 2¹⁰ = 804162521 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 146755 + ... + 152135.

It is an arithmetic number, because the mean of its divisors is an integer number (26471367).

Almost surely, 2^804163545 is an apocalyptic number.

It is an amenable number.

804163545 is a deficient number, since it is larger than the sum of its proper divisors (678233007).

804163545 is an equidigital number, since it uses as much as digits as its factorization.

804163545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5445 (or 5430 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 804163545 is about 28357.7775045930. Note that the first 3 decimals coincide. The cubic root of 804163545 is about 929.9254362696.

The spelling of 804163545 in words is "eight hundred four million, one hundred sixty-three thousand, five hundred forty-five".