808155 has 12 divisors (see below), whose sum is σ = 1400880. Its totient is φ = 430992.

The previous prime is 808153. The next prime is 808169. The reversal of 808155 is 551808.

It is not a de Polignac number, because 808155 - 2¹ = 808153 is a prime.

It is a super-2 number, since 2×808155² = 1306229008050, which contains 22 as substring.

It is an Ulam number.

808155 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (808153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8935 + ... + 9024.

It is an arithmetic number, because the mean of its divisors is an integer number (116740).

2⁸⁰⁸¹⁵⁵ is an apocalyptic number.

808155 is a deficient number, since it is larger than the sum of its proper divisors (592725).

808155 is a wasteful number, since it uses less digits than its factorization.

808155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17970 (or 17967 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 808155 is about 898.9744156537. The cubic root of 808155 is about 93.1461455218.

The spelling of 808155 in words is "eight hundred eight thousand, one hundred fifty-five".