845272065 has 32 divisors (see below), whose sum is σ = 1490622336. Its totient is φ = 405596160.

The previous prime is 845272063. The next prime is 845272069. The reversal of 845272065 is 560272548.

It is not a de Polignac number, because 845272065 - 2¹ = 845272063 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (845272063) 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 31 ways as a sum of consecutive naturals, for example, 10402 + ... + 42411.

It is an arithmetic number, because the mean of its divisors is an integer number (46581948).

Almost surely, 2^845272065 is an apocalyptic number.

It is an amenable number.

845272065 is a deficient number, since it is larger than the sum of its proper divisors (645350271).

845272065 is a wasteful number, since it uses less digits than its factorization.

845272065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52929.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 845272065 is about 29073.5629911437. The cubic root of 845272065 is about 945.5086480927.

The spelling of 845272065 in words is "eight hundred forty-five million, two hundred seventy-two thousand, sixty-five".