845212065 has 8 divisors (see below), whose sum is σ = 1352339328. Its totient is φ = 450779760.

The previous prime is 845212063. The next prime is 845212079. The reversal of 845212065 is 560212548.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 845212065 - 2¹ = 845212063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (845212063) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28173721 + ... + 28173750.

It is an arithmetic number, because the mean of its divisors is an integer number (169042416).

Almost surely, 2^845212065 is an apocalyptic number.

It is an amenable number.

845212065 is a deficient number, since it is larger than the sum of its proper divisors (507127263).

845212065 is a wasteful number, since it uses less digits than its factorization.

845212065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56347479.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 845212065 is about 29072.5311075592. The cubic root of 845212065 is about 945.4862758635.

The spelling of 845212065 in words is "eight hundred forty-five million, two hundred twelve thousand, sixty-five".