845112205 has 32 divisors (see below), whose sum is σ = 1182873600. Its totient is φ = 567673920.

The previous prime is 845112199. The next prime is 845112221. The reversal of 845112205 is 502211548.

It is not a de Polignac number, because 845112205 - 2²¹ = 843015053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 465750 + ... + 467560.

It is an arithmetic number, because the mean of its divisors is an integer number (36964800).

Almost surely, 2^845112205 is an apocalyptic number.

It is an amenable number.

845112205 is a deficient number, since it is larger than the sum of its proper divisors (337761395).

845112205 is a wasteful number, since it uses less digits than its factorization.

845112205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 845112205 is about 29070.8136281047. The cubic root of 845112205 is about 945.4490386690.

It can be divided in two parts, 845 and 112205, that added together give a triangular number (113050 = T₄₇₅).

The spelling of 845112205 in words is "eight hundred forty-five million, one hundred twelve thousand, two hundred five".