845171263 has 2 divisors, whose sum is σ = 845171264. Its totient is φ = 845171262.

The previous prime is 845171251. The next prime is 845171329. The reversal of 845171263 is 362171548.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 845171263 - 2²⁵ = 811616831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (845171213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422585631 + 422585632.

It is an arithmetic number, because the mean of its divisors is an integer number (422585632).

Almost surely, 2^845171263 is an apocalyptic number.

845171263 is a deficient number, since it is larger than the sum of its proper divisors (1).

845171263 is an equidigital number, since it uses as much as digits as its factorization.

845171263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 845171263 is about 29071.8293714035. The cubic root of 845171263 is about 945.4710613970.

The spelling of 845171263 in words is "eight hundred forty-five million, one hundred seventy-one thousand, two hundred sixty-three".