833321161 has 4 divisors (see below), whose sum is σ = 834267924. Its totient is φ = 832374400.

The previous prime is 833321129. The next prime is 833321201. The reversal of 833321161 is 161123338.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161123338 = 2 ⋅80561669.

It can be written as a sum of positive squares in 2 ways, for example, as 438106761 + 395214400 = 20931^2 + 19880^2 .

It is a cyclic number.

It is not a de Polignac number, because 833321161 - 2⁵ = 833321129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (833328161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472060 + ... + 473821.

It is an arithmetic number, because the mean of its divisors is an integer number (208566981).

Almost surely, 2^833321161 is an apocalyptic number.

It is an amenable number.

833321161 is a deficient number, since it is larger than the sum of its proper divisors (946763).

833321161 is an equidigital number, since it uses as much as digits as its factorization.

833321161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946762.

The product of its digits is 2592, while the sum is 28.

The square root of 833321161 is about 28867.3026277136. The cubic root of 833321161 is about 941.0314470170.

Adding to 833321161 its reverse (161123338), we get a palindrome (994444499).

The spelling of 833321161 in words is "eight hundred thirty-three million, three hundred twenty-one thousand, one hundred sixty-one".