845621159 has 2 divisors, whose sum is σ = 845621160. Its totient is φ = 845621158.

The previous prime is 845621053. The next prime is 845621167. The reversal of 845621159 is 951126548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 845621159 - 2²⁸ = 577185703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (845620159) by changing a digit.

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 as a sum of consecutive naturals, namely, 422810579 + 422810580.

It is an arithmetic number, because the mean of its divisors is an integer number (422810580).

Almost surely, 2^845621159 is an apocalyptic number.

845621159 is a deficient number, since it is larger than the sum of its proper divisors (1).

845621159 is an equidigital number, since it uses as much as digits as its factorization.

845621159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 41.

The square root of 845621159 is about 29079.5660043268. The cubic root of 845621159 is about 945.6387939478.

The spelling of 845621159 in words is "eight hundred forty-five million, six hundred twenty-one thousand, one hundred fifty-nine".