810112155 has 32 divisors (see below), whose sum is σ = 1330318080. Its totient is φ = 420800640.

The previous prime is 810112109. The next prime is 810112207. The reversal of 810112155 is 551211018.

It is not a de Polignac number, because 810112155 - 2⁶ = 810112091 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106840 + ... + 114170.

It is an arithmetic number, because the mean of its divisors is an integer number (41572440).

Almost surely, 2^810112155 is an apocalyptic number.

810112155 is a deficient number, since it is larger than the sum of its proper divisors (520205925).

810112155 is a wasteful number, since it uses less digits than its factorization.

810112155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7531.

The product of its (nonzero) digits is 400, while the sum is 24.

The square root of 810112155 is about 28462.4692358200. The cubic root of 810112155 is about 932.2127734625.

The spelling of 810112155 in words is "eight hundred ten million, one hundred twelve thousand, one hundred fifty-five".