808161 has 4 divisors (see below), whose sum is σ = 1077552. Its totient is φ = 538772.

The previous prime is 808153. The next prime is 808169. The reversal of 808161 is 161808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (808153) and next prime (808169).

It is a cyclic number.

It is not a de Polignac number, because 808161 - 2³ = 808153 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (808169) 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, 134691 + ... + 134696.

It is an arithmetic number, because the mean of its divisors is an integer number (269388).

2⁸⁰⁸¹⁶¹ is an apocalyptic number.

It is an amenable number.

808161 is a deficient number, since it is larger than the sum of its proper divisors (269391).

808161 is a wasteful number, since it uses less digits than its factorization.

808161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269390.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 808161 is about 898.9777527837. The cubic root of 808161 is about 93.1463760367.

Adding to 808161 its reverse (161808), we get a palindrome (969969).

It can be divided in two parts, 808 and 161, that added together give a palindrome (969).

The spelling of 808161 in words is "eight hundred eight thousand, one hundred sixty-one".