813604161 has 8 divisors (see below), whose sum is σ = 1110033760. Its totient is φ = 529788672.

The previous prime is 813604151. The next prime is 813604237. The reversal of 813604161 is 161406318.

813604161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 813604161 - 2¹³ = 813595969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (813604151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3153376 + ... + 3153633.

It is an arithmetic number, because the mean of its divisors is an integer number (138754220).

Almost surely, 2^813604161 is an apocalyptic number.

It is an amenable number.

813604161 is a deficient number, since it is larger than the sum of its proper divisors (296429599).

813604161 is a wasteful number, since it uses less digits than its factorization.

813604161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307055.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 813604161 is about 28523.7473169287. The cubic root of 813604161 is about 933.5502946154.

The spelling of 813604161 in words is "eight hundred thirteen million, six hundred four thousand, one hundred sixty-one".